English conjunctions are small words with a large responsibility: they tell readers how ideas relate. And adds, but contrasts, or offers alternatives, because gives a reason, although signals concession, if builds a condition, when locates a relationship in time, and so presents a result. Students often learn conjunctions as a list of linking words, then discover that simply inserting more connectors does not make writing clearer. The real skill is selecting a connector whose grammatical structure and logical relationship fit the intended meaning.
This SETC guide teaches coordinating, subordinating and correlative conjunctions as part of sentence logic. It is written for Primary, PSLE, Secondary, SEC and advanced learners who need better grammar, synthesis and transformation, comprehension, editing and composition. It also addresses a recurring examination problem: a sentence can be grammatically complete yet logically wrong because the conjunction misrepresents cause, contrast, time or condition.
The central principle is simple: identify the relationship before choosing the connector. Do not select a conjunction because it sounds formal. Select it because it accurately tells the reader how one unit of meaning connects to another.
What is a conjunction?
A conjunction connects grammatical units and signals a relationship between them. Coordinating conjunctions commonly connect words, phrases or clauses of similar status. Subordinating conjunctions introduce dependent clauses and relate them to main clauses. Correlative conjunctions work in pairs. Different grammar traditions classify some multiword connectors differently, but the learner’s practical task remains the same: recognise the structure and interpret the relationship.
Compare “Maren revised and Iona practised.” The coordinator and joins two clauses of equal status. “Maren revised because the examination was approaching” contains a main clause and a reason clause introduced by because. “Either Maren or Iona will present” uses the correlative pair either…or to present alternatives.
Coordinating conjunctions
The familiar coordinating conjunctions are for, and, nor, but, or, yet and so. Mnemonics such as FANBOYS can help recall them, but recall is only the beginning. A coordinator must connect appropriate structures and express a sensible relationship.
And
And commonly adds information, coordinates events or combines participants: Maren read the article and took notes. The tutor and the students discussed the example. Addition can imply sequence when world knowledge supports it, but and itself does not explicitly mean therefore or because. “He pressed the switch and the light came on” suggests sequence; the exact causal interpretation comes from context.
But and yet
But marks contrast or an unexpected relationship: The task was difficult, but the instructions were clear. Yet can create a similar contrast, sometimes with a slightly more formal or emphatic tone: The evidence was limited, yet the conclusion was confident. Writers should use the connector that fits the intended register and relationship rather than rotate synonyms mechanically.
Or and nor
Or presents alternatives or possibilities: We can revise now or continue after dinner. Nor coordinates negative alternatives, often after another negative structure: She did not complain, nor did she leave. The syntax after nor may involve inversion in formal writing.
So and for
So commonly introduces a result: The road was flooded, so the bus was delayed. For can introduce a reason in a more literary or formal coordinating use: We returned early, for the weather had worsened. Students should not force for into contexts where because would be more natural.
Subordinating conjunctions
Subordinating conjunctions introduce clauses that depend grammatically on another clause. Common examples include because, although, though, even though, if, unless, when, while, before, after, since, as, once, until, whereas and whether. The subordinate clause can appear before or after the main clause depending on information flow and style.
Because the train was delayed, Leonie arrived late. Leonie arrived late because the train was delayed. The basic cause relationship remains, but the sentence presents information in a different order.
Cause: because, since and as
Because is the clearest general-purpose conjunction for explicit cause: The class stopped because the bell rang. Since and as can also express reason, but both have other meanings. Since can mark time; as can mark time, manner or role. When clarity matters, because is often the safest choice for direct causation.
Students should distinguish because + clause from because of + noun phrase: because the train was late; because of the delay. Mixing them produces errors such as because of the train was late.
Contrast and concession: although, though, even though, whereas and while
Although introduces a fact that might make the main outcome seem surprising: Although Maren was tired, she finished the report. Even though strengthens the concessive force. Though often works similarly and can be less formal in some positions.
Whereas explicitly contrasts two propositions: Maren prefers narrative writing, whereas Iona prefers argumentative writing. While can also express contrast, but it has a strong time meaning too. Writers should check whether the intended reading is unambiguous.
Do not double-mark standard concession with although…but in the same simple structure: Although she was tired, but she continued is non-standard. Use Although she was tired, she continued, or She was tired, but she continued.
Condition: if, unless, provided that and as long as
If builds a condition: If you finish the draft, review the conclusion. Unless generally means if not: Unless you revise, the error may remain. Because unless already carries negative condition, adding another unnecessary negative can reverse meaning.
Provided that and as long as can express conditions with a stronger sense of requirement: You may use the room provided that you leave it tidy. Students should distinguish conditional as long as from temporal duration in other contexts.
Time: when, while, before, after, until, once and since
Time conjunctions organise events relative to one another. When the lesson ended, the students packed their bags. While Leonie was reading, Maren took notes. Before the tutor arrived, Iona arranged the materials. Stay here until I return. Once the explanation is clear, begin the exercise.
The conjunction introduces a finite clause. This distinguishes while from during: while the lesson was continuing versus during the lesson. It also distinguishes although from despite: although she was tired versus despite being tired.
Purpose and result
So that commonly introduces purpose or intended result: I spoke slowly so that everyone could follow. So…that can express result through a degree construction: The explanation was so clear that everyone understood. The two structures look similar but behave differently.
In order that is more formal and less common in everyday school writing. In order to introduces an infinitive phrase rather than a conjunction-led finite clause: She revised early in order to avoid rushing.
Comparison and manner
As and than can participate in comparison structures: Write as clearly as you can; the task was harder than I expected. Grammar descriptions differ in the details, but students should recognise the relational pattern and ensure the compared elements are logically parallel.
Correlative conjunctions
Correlative conjunctions work in paired structures: either…or, neither…nor, both…and, not only…but also, whether…or. These pairs require balance. “The course improves both grammar and writing” coordinates two nouns. “The course helps students both understand grammar and apply it” coordinates two verb phrases. Parallel structure makes the relationship easier to process.
A common problem is mismatched coordination: She enjoys both reading and to write. Repair by making the forms parallel: both reading and writing, or both to read and to write.
Either…or and neither…nor agreement
When either…or or neither…nor joins subjects of different number, formal usage often makes the verb agree with the nearer subject: Either the teachers or the principal is attending; either the principal or the teachers are attending. Awkward constructions can be rewritten for clarity.
Not only…but also
Not only…but also adds emphasis, but it should not be used merely to sound sophisticated. Keep the coordinated elements parallel: The programme not only teaches grammar but also develops editing habits. Avoid pairing a verb phrase on one side with a noun phrase on the other unless the larger syntax supports it.
Conjunctions versus conjunctive adverbs
Words such as however, therefore, moreover, nevertheless and consequently often connect ideas at the discourse level, but they are not coordinating conjunctions in standard grammar. They cannot simply join two independent clauses with a comma. “The evidence was limited; however, the conclusion was strong” is standard. “The evidence was limited, however the conclusion was strong” requires different punctuation or restructuring.
This distinction matters in Secondary editing because students often call every connector a conjunction and then create comma splices.
Conjunctions versus prepositions
Some meaning pairs use different structures. Although + clause contrasts with despite + noun phrase or -ing form. Because + clause contrasts with because of + noun phrase. While + clause contrasts with during + noun phrase. Students should learn the grammatical frame, not only the meaning.
Examples: Although it was raining, we continued. Despite the rain, we continued. Because the bus was late, we walked. Because of the delay, we walked. While the teacher was speaking, we listened. During the lesson, we listened.
Sentence fragments after subordinators
A subordinate clause cannot normally stand alone as a complete standard sentence when its meaning depends on a missing main clause. “Because the weather changed.” is a fragment in ordinary formal prose. Complete it: “We went inside because the weather changed.” In creative writing, fragments can be deliberate stylistic choices, but students should first understand the standard structure.
Run-ons and conjunction choice
Independent clauses cannot be joined by a comma alone in formal writing. “The task was difficult, the students continued” is a comma splice. One repair is a coordinator: “The task was difficult, but the students continued.” Another is a semicolon or full stop. The conjunction should reflect the actual relationship.
Conjunctions and punctuation
When a coordinating conjunction joins two independent clauses, a comma commonly appears before it: Maren revised, and Iona checked the notes. When the coordinated elements are shorter phrases rather than full clauses, a comma is often unnecessary: Maren read and wrote.
An introductory subordinate clause is commonly followed by a comma: Although the room was noisy, Leonie concentrated. When the subordinate clause follows, a comma is often unnecessary: Leonie concentrated although the room was noisy. Punctuation depends on structure, emphasis and style.
Logical relationships students must distinguish
- addition: and, as well as
- contrast: but, yet, whereas
- concession: although, even though, though
- cause: because, since, as
- result: so; therefore as a conjunctive adverb
- condition: if, unless, provided that
- time: when, while, before, after, until, once
- alternative: or, either…or
- negative alternative: neither…nor
- purpose: so that
- comparison: than, as…as
A useful editing question is: if the connector were removed, what exact relationship would the reader need to reconstruct? Name that relationship before choosing a replacement.
Common conjunction errors
- Although she was tired, but she continued. → Although she was tired, she continued.
- Because of the bus was late, we walked. → Because the bus was late, we walked.
- Despite it was raining, we continued. → Although it was raining, we continued; or Despite the rain, we continued.
- During the teacher was speaking, we listened. → While the teacher was speaking, we listened.
- She likes both reading and to write. → She likes both reading and writing.
- The evidence was weak, however the claim was strong. → Use a semicolon/full stop before however, or use but.
- Unless you do not revise, the error may remain. → Unless you revise, the error may remain.
- He was late, because he missed the bus. → The comma is normally unnecessary in this straightforward order.
- The instructions were clear, so that everyone understood. → If result is intended, rewrite as The instructions were so clear that everyone understood or The instructions were clear, so everyone understood.
- Not only she reads but also writes. → She not only reads but also writes, depending on intended emphasis.
A SETC conjunction check
- Identify whether you are joining words, phrases, independent clauses or a dependent clause to a main clause.
- Name the logical relationship before choosing a connector.
- Check whether the connector requires a clause, noun phrase or another structure.
- Check parallel structure in correlative pairs.
- Check punctuation around independent and subordinate clauses.
- Read the sentence without the connector and verify that the chosen word restores the intended logic.
- Use a simpler connector if the formal one makes the relationship less clear.
Primary and PSLE application
Primary learners need strong control of basic addition, contrast, cause, time and condition before they need an enormous connector list. Teach and, but, or, because, although, if, when, while, before and after through sentence combining. Ask students to explain the relationship rather than only fill a blank.
At PSLE level, conjunction knowledge supports grammar, cloze, synthesis and transformation, comprehension and composition. Contrastive structures such as although versus despite and because versus because of deserve explicit practice because they involve both meaning and syntax.
Secondary and SEC application
Secondary learners need finer control over concessive logic, condition, correlative parallelism, conjunctive adverbs and punctuation. They should also recognise that sophisticated writing does not mean replacing simple connectors with longer ones indiscriminately.
Argumentative writing especially benefits from accurate relation labels. Evidence may support, qualify, contrast with or result from another claim. The connector should make that relationship explicit without overstating it.
Continue through SETC
Return to English Grammar and Sentence Control | Make Meaning Clear. Connect this guide with How English Works, the SETC writing routes and Secondary English Editing.
The principle to keep: conjunctions are not decorative transitions. They are instructions about logic. Choose them by relationship, structure and meaning.
Worked example: one idea, different relationships
Start with two propositions: Leonie was tired. Leonie continued revising. “Leonie was tired, but she continued revising” presents contrast. “Although Leonie was tired, she continued revising” presents concession and makes the tiredness background to the unexpected continuation. “Leonie continued revising because she was tired” creates a very different causal meaning and may be illogical unless tiredness somehow motivated the revision. “Leonie continued revising while she was tired” presents simultaneous state and activity but weakens the contrast. The clauses are almost identical; the conjunction changes the reader’s interpretation.
This comparison is one of the fastest ways to teach conjunctions. Keep the content stable, change the connector and ask how the logic changes. Students discover that a connector is not a synonym for “linking word.” It is a semantic instruction.
Worked example: clause versus phrase
Compare: “Although the rain was heavy, the match continued” and “Despite the heavy rain, the match continued.” Although introduces a finite clause with subject rain and verb was. Despite introduces the noun phrase the heavy rain. Now transform again: “Despite raining heavily” is possible in some contexts, but the implied subject must make sense. The safer teaching pattern is despite + noun phrase or -ing form, although + clause.
Do the same with because and because of: “We stayed inside because the storm intensified” versus “We stayed inside because of the storm.” This structural pairing supports synthesis and transformation far better than memorising connector definitions separately.
Conjunctions in comprehension
Conjunctions often reveal the architecture of a passage. Yet and although warn the reader that the next idea qualifies expectation. Because and since can introduce reasons. If and unless define conditions. When and while organise time. In inference questions, a connector may show whether the writer sees two statements as causes, contrasts or alternatives.
Teach students to circle high-value connectors before answering dense questions. Then ask what relationship would disappear if the connector were removed. This creates a bridge between grammar knowledge and reading comprehension.
Conjunctions in argumentative writing
Arguments depend on disciplined relationships among claims. Addition is not the same as cause; contrast is not the same as concession; an example is not automatically evidence of a general result. “Students use digital tools, so learning improves” asserts a result that may require evidence. “Students use digital tools, but learning outcomes vary” marks contrast without claiming direct causation. “Although digital tools increase access, they do not guarantee understanding” acknowledges one point before limiting its implication.
Before adding a connector, ask whether the underlying reasoning is warranted. Grammar cannot repair weak logic. A polished therefore does not make a conclusion valid if the evidence does not support it.
Conjunctions in narrative writing
Narratives use conjunctions to manage sequence, simultaneity, cause and surprise. “When the lights failed, everyone stopped.” “While Maren searched for a torch, Iona opened the door.” “Because the corridor was dark, Leonie moved slowly.” “Although they could not see clearly, they remained calm.” Variety comes from changing relationships, not simply avoiding repeated words.
Overusing and can flatten event structure. A beginner may write: “I opened the door and I walked in and I saw the bag and I picked it up.” Revision can clarify timing and cause: “When I opened the door, I saw the bag beside the desk. I walked over and picked it up because I recognised the label.” The improved version does more than sound mature; it tells the reader how the events relate.
Mixed practice
- ___ Maren was nervous, she spoke clearly.
- The road was closed, ___ we took another route.
- Iona will present ___ Leonie is absent.
- Wait here ___ I return.
- The answer was short ___ accurate.
- ___ the heavy rain, the match continued. Choose a preposition rather than a conjunction.
- ___ it was raining heavily, the match continued.
- Neither the teacher ___ the students were ready.
- The course teaches ___ grammar ___ writing.
- The evidence was incomplete; ___, the report was submitted.
Possible answers: although; so; if; until; but or yet depending on intended contrast; despite; although; nor; both…and; however or nevertheless. Item 6 is deliberately included to test whether the learner distinguishes conjunctions from prepositions. Item 10 tests whether the learner recognises a conjunctive adverb and punctuates it accordingly.
A conjunction error log
Instead of recording only the wrong word, keep four columns: original sentence, intended relationship, structural problem and corrected pattern. For “Despite she was tired, she continued,” write intended relationship: concession; structural problem: despite takes a noun phrase or -ing form, not an ordinary finite clause; corrected patterns: despite being tired / although she was tired. This turns one correction into a reusable rule.
Review the log by relationship rather than alphabetically. Group cause errors, concession errors, condition errors and coordination errors together. Pattern recognition improves faster when similar decisions are compared.
How SETC teaches conjunctions in three-student tutorials
One student may identify the connector but misunderstand the logic. Another may understand cause and contrast but use the wrong clause structure. A third may write accurate sentences and then create comma splices when using however. Small-group discussion makes these differences visible because students must defend the relationship and punctuation they chose.
SETC uses sentence combining, contrastive transformation, paragraph editing and independent writing. Students are asked to name the relationship first, choose a structure second and punctuate third. The final test is whether the same control appears when the writing task is about ideas rather than conjunctions.
Frequently asked questions
Can I start a sentence with and or but?
Yes. Standard English allows sentence-initial coordinators when the discourse relationship is clear. School style may prefer moderation, but the construction itself is not inherently ungrammatical.
Is however a conjunction?
In common school discussion it is often called a linking word, but standard grammatical descriptions typically treat it as a conjunctive adverb rather than a coordinating conjunction. This matters because punctuation differs.
What is the difference between although and despite?
Although introduces a clause; despite is a preposition and normally takes a noun phrase or -ing construction. Both can express concession.
Why is although…but usually wrong?
Both already mark the contrast relationship in the basic construction, so using both creates non-standard double marking. Choose one structure.
How can I avoid repeating because?
Do not replace because merely for variety. First decide whether the relation truly is cause. If it is, alternative structures may include since, as, because of + noun phrase or a sentence-level restructuring, but clarity comes before variation.
Research and reference points
This guide is original SETC teaching material. Current reference grammars such as Cambridge Dictionary Grammar and British Council LearnEnglish provide additional examples of coordinating and subordinating conjunctions, clause relationships and linking expressions. Terminology differs across sources, especially for discourse connectors, so learners should focus on structure and logical function as well as labels.
Final mastery check
Take a paragraph of your own writing and underline every connector. For each, write one word in the margin naming the relationship: addition, contrast, concession, cause, result, condition, time, alternative or purpose. Check whether the grammar following the connector matches its structure. Then replace three connectors with different structures while preserving the meaning. If the paragraph remains clear and the logical relationship survives, conjunction knowledge is transferring into real writing.
Conjunctions, information order and emphasis
The position of a subordinate clause changes information flow even when the basic logical relationship stays stable. “Because the room was noisy, Leonie moved to the library” begins with the reason and prepares the reader for the result. “Leonie moved to the library because the room was noisy” begins with the main event and supplies the reason afterwards. In argumentative writing, fronting a concession can be especially useful: “Although the proposal would reduce cost, it may create new delays.” The concession is acknowledged first, then the writer states the main position.
Students should therefore practise both orders rather than assume that conjunction choice is independent of paragraph structure. Ask what information is already known, what should be foregrounded and where the reader needs the logical signal. Grammar and information design work together.
Avoiding false cause
Because, so and therefore can make a sentence sound more certain than the evidence supports. “Students who sleep more perform better, so extra sleep causes higher marks” may overstate a correlation if the evidence does not establish causation. In school argument, conjunctions should reflect the strength of reasoning. A safer formulation might be “Students who sleep more often perform better, although other factors may also contribute.” The grammar is not merely decorative; it can encode the writer’s level of certainty.
This is especially important in comprehension and GP-style reasoning. A connector tells the reader what inferential move the writer is making. If the move is unsupported, changing vocabulary will not repair the logic.
Parallelism with correlative pairs
Correlative conjunctions are strongest when the structures after each half match. “The programme teaches both how to read closely and how to write precisely” is parallel. “The programme teaches both close reading and how to write precisely” mixes a noun phrase with a clause-like infinitive structure. The mixed version may still be understandable, but the parallel version is easier to process.
Use a bracket test: both [X] and [Y]; either [X] or [Y]; neither [X] nor [Y]; not only [X] but also [Y]. If X and Y are different grammatical shapes, decide whether the mismatch is intentional or should be revised.
Conditional meaning beyond simple if
Conditionals can express real possibilities, hypothetical situations, counterfactual pasts and general relationships. The conjunction if introduces the condition, but tense and modality complete the meaning. “If it rains, we will move indoors” presents a future possibility. “If I had more time, I would revise the introduction” presents a hypothetical present situation. “If we had left earlier, we would have caught the train” presents an unreal past alternative.
Unless often replaces if…not, but only when the meaning remains genuinely negative: “Unless you save the file, you may lose your work” approximates “If you do not save the file, you may lose your work.” It does not replace every if-clause containing a negative word. Learners should paraphrase the meaning before transforming.
A diagnostic paragraph
Consider: “Although the group had little time, but they continued because of they wanted to finish, however the final section remained incomplete.” This sentence contains several different problems. Although and but double-mark the concession. Because of incorrectly introduces a finite clause; because is needed. However cannot simply join the final independent clause with a comma. A possible repair is: “Although the group had little time, they continued because they wanted to finish; however, the final section remained incomplete.” Each correction follows a different rule, so simply telling the student to “fix the connectors” hides the real learning.
Seven-day conjunction practice cycle
- Day 1: sort twenty connectors by relationship.
- Day 2: combine pairs of simple sentences using two different logical relationships and explain how meaning changes.
- Day 3: transform although ↔ despite and because ↔ because of structures.
- Day 4: edit comma splices and conjunctive-adverb punctuation.
- Day 5: practise correlative pairs and parallelism.
- Day 6: analyse connectors in an authentic article or comprehension passage.
- Day 7: write a 180-word argument or narrative, then label every connector by function.
The cycle mixes recognition, production, editing and transfer. A student who succeeds only when the worksheet heading says “conjunctions” has not yet built durable control. The final-day writing task removes the cue and shows whether the learner notices relationships independently.
Parent and tutor diagnostic questions
- Can the learner name the relationship expressed by a connector?
- Can the learner distinguish clause-taking conjunctions from prepositions such as despite and because of?
- Does the learner create fragments after because, although or while?
- Does the learner create comma splices with however or therefore?
- Are correlative structures parallel?
- Does the learner overuse and in narrative writing?
- Does the learner claim cause when the evidence supports only association or contrast?
- Can accurate sentence-level work transfer into paragraphs?
These questions separate knowledge from application. A learner who knows connector meanings but punctuates them incorrectly needs clause-boundary work. A learner who writes grammatically but chooses the wrong relationship needs reasoning practice. A learner who succeeds in exercises but not composition needs transfer practice. Efficient teaching starts with the actual failure point.
One-page revision map
Organise conjunctions by relation rather than alphabetically. Put addition and coordination in one section; contrast and concession in another; cause and result in a third; condition in a fourth; time in a fifth; alternatives and correlative pairs in a sixth. Beside each relation, write one model sentence and one structural warning. For concession: although + clause; despite + noun phrase or -ing form. For result: so can coordinate clauses; therefore normally needs sentence-level punctuation. For condition: unless already contains negative meaning. This map creates retrieval routes that match actual writing decisions.
Final transfer standard
A learner has mastered conjunctions when they can read two propositions, state the intended relationship, select an appropriate structure, punctuate it, and explain how a different connector would change meaning. The final test is not a perfect score on a connector worksheet. It is the ability to maintain logical relationships while writing about an unfamiliar topic under ordinary time pressure. When the student can do that, conjunction knowledge has become part of reasoning and composition rather than a memorised grammar list.
One final self-check is to remove every connector from a paragraph and write the intended relationship above each gap before restoring any word. This prevents the learner from choosing by habit. If the gap requires concession, decide whether the following structure is a clause or noun phrase before selecting although or despite. If it requires cause, decide whether the relationship is genuinely causal before using because. If two independent clauses are involved, decide whether a coordinator, semicolon or conjunctive adverb structure is appropriate. This sequence makes logic visible before vocabulary enters. Repeating it with new topics builds a habit that supports grammar, comprehension and reasoning at the same time.