Using Conjunctions – Definition, Rules & Examples
Conjunctions in English Grammar – Rules, Types & Examples
Words such as and, but, because, although, and if connect ideas throughout English sentences. Without conjunctions, many sentences would sound disconnected or unnecessarily repetitive. Compare “Ali studied hard and passed the exam” with “She stayed home because she was sick.”
This guide explains conjunctions, their three main types (coordinating, subordinating, correlative), comma rules, parallel structure, common mistakes, and practice questions. It also covers the conjunctions commonly tested in CSS, PMS, FPSC, PPSC, IELTS, and TOEFL.
What Is a Conjunction?
A conjunction is a word that connects words, phrases, clauses, or sentences.
For example:
- Ali and Ahmed are friends.
- She likes tea but dislikes coffee.
- We stayed inside because it was raining.
- Call me when you arrive.
The conjunction tells readers how the connected ideas relate to each other. Some conjunctions show addition. Others show contrast, choice, reason, time, condition, or purpose.
Conjunctions are one part of English grammar. You can also review other parts of speech through our English grammar resources.
Quick Rule – Conjunctions vs Prepositions vs Adverbs
- Conjunctions join grammatical units: and, but, or, because.
- Prepositions link a noun or pronoun to another word: in, on, at, with.
- Conjunctive adverbs connect ideas but follow different punctuation rules: however, therefore.
What Are the Three Main Types of Conjunctions?
English conjunctions are commonly divided into three main types. Each type connects ideas in a different way.
Coordinating Conjunctions
Connect words, phrases, or grammatical units of equal importance.
Remembered by FANBOYS: for, and, nor, but, or, yet, so.
Subordinating Conjunctions
Connect a dependent clause with an independent clause.
Examples: because, although, if, when, until.
Correlative Conjunctions
Work in pairs to connect words, phrases, or clauses of similar grammatical function.
Examples: either…or, neither…nor, both…and, not only…but also.
A fourth category – conjunctive adverbs (however, therefore, moreover) – connects ideas but follows different punctuation rules. See the conjunctive adverbs section.
What Are Coordinating Conjunctions?
A coordinating conjunction connects words, phrases, or grammatical units of equal importance. The seven coordinating conjunctions are commonly remembered through FANBOYS.
What Are the Seven FANBOYS Conjunctions?
For
For can introduce a reason or explanation.
- He went home, for he was feeling sick.
- She stayed inside, for the weather was terrible.
In modern everyday English, because is usually more natural for this meaning.
And
And adds one idea to another.
- Sara bought a book and a notebook.
- He studied hard and passed the examination.
Nor
Nor adds another negative idea after a negative statement.
- He does not smoke, nor does he drink.
- She neither called nor sent a message.
But
But shows contrast between two ideas.
- He is poor but honest.
- She studied hard but failed the test.
Or
Or presents a choice or alternative.
- Would you like tea or coffee?
- You can study now or study later.
Yet
Yet shows contrast or an unexpected result.
- He is young, yet he is very responsible.
- The question was difficult, yet she answered it correctly.
So
So can show a result or consequence.
- It was raining, so we stayed home.
- He studied regularly, so he improved his score.
Coordinating Conjunction Examples
Coordinating conjunctions can connect individual words:
- Ali and Ahmed attended the class.
They can connect phrases:
- She likes reading and writing.
They can also connect independent clauses:
- He worked hard, and he passed the examination.
The relationship between the connected ideas determines which conjunction you should use.
When Should You Use a Comma With FANBOYS?
Use a comma before a coordinating conjunction when it joins two independent clauses. An independent clause can stand as a complete sentence.
For example:
- She studied hard, and she passed the exam.
- He was tired, but he continued working.
Do not automatically place a comma before every and, but, or, so.
For example:
- Ali bought books and notebooks.
- She wanted tea but ordered coffee instead.
Quick Rule – Comma Before FANBOYS
- Use a comma when the conjunction joins two independent clauses: He was tired, but he continued.
- No comma when the conjunction joins words or phrases: He was tired but continued.
- The comma depends on sentence structure – not on the conjunction itself.
What Are Subordinating Conjunctions?
A subordinating conjunction connects a dependent clause with an independent clause. The dependent clause cannot normally express a complete thought by itself.
For example:
- Because she was ill, she stayed home.
- She stayed home because she was ill.
The phrase because she was ill depends on the main clause for its complete meaning. Subordinating conjunctions can express relationships such as time, reason, condition, contrast, and purpose.
Quick Rule – Comma With Subordinating Conjunctions
- Dependent clause first → use a comma: Although he was tired, he continued working.
- Main clause first → no comma needed: He continued working although he was tired.
- This rule appears constantly in sentence-correction and error-detection questions.
Common Subordinating Conjunctions – By Function
Different subordinating conjunctions express different relationships between clauses. Group them by function to learn them faster.
Conjunctions of Time
Common examples include when, while, before, after, until, since, whenever.
- Call me when you arrive.
- Wash your hands before you eat.
- We waited until the teacher arrived.
- She left after the meeting ended.
Conjunctions of Reason
Common examples include because, since, as.
- We stayed home because it was raining.
- Since you are here, we can begin.
- As he was tired, he went to bed early.
Conjunctions of Condition
Common examples include if, unless, provided that, as long as.
- If you study regularly, you can improve.
- You will fail unless you prepare properly.
- You can attend provided that you register first.
- You may leave as long as you finish the work.
Conjunctions of Contrast
Common examples include although, though, even though, whereas, while.
- Although he was tired, he continued studying.
- She succeeded even though the test was difficult.
- Ali likes tea, whereas Ahmed prefers coffee.
Conjunctions of Purpose
Common examples include so that, in order that.
- She spoke clearly so that everyone could understand.
- He saved money so that he could buy a laptop.
What Are Correlative Conjunctions?
Correlative conjunctions work in pairs. They connect words, phrases, or clauses that have a similar grammatical function. Common pairs include either…or, neither…nor, both…and, not only…but also, whether…or, rather…than.
Either and Or
Use either…or to present two alternatives.
- Either Ali or Ahmed will attend.
- You can either study now or study later.
Neither and Nor
Use neither…nor to connect two negative alternatives.
- Neither Ali nor Ahmed attended.
- She likes neither tea nor coffee.
Both and And
Use both…and to connect two related items.
- Both Ali and Ahmed passed.
- She studies both English and mathematics.
Not Only and But Also
Use not only…but also to emphasize two related ideas.
- She is not only intelligent but also hardworking.
- He not only studied the topic but also practiced questions.
Whether and Or
Use whether…or when presenting alternatives or possibilities.
- I do not know whether he will come or stay.
- Tell me whether you agree or disagree.
Rather and Than
Use rather…than to show preference.
- I would rather walk than wait.
- She would rather study than waste time.
Why Is Parallel Structure Important?
Correlative conjunctions should normally connect structures that match grammatically. Matching structures make sentences clearer and more balanced.
She likes both reading and to write.
She likes both reading and writing.
He is not only intelligent but also works hard.
He is not only intelligent but also hardworking.
Quick Rule – Parallel Structure
- After both…and, use the same form on both sides: both reading and writing, not both reading and to write.
- After not only…but also, match the grammatical structure: not only intelligent but also hardworking.
- After either…or and neither…nor, keep subjects, verbs, or phrases parallel.
What Are 20 Common Conjunctions?
English has many conjunctions, so there is no official list containing exactly twenty. However, these are twenty common examples:
| # | Conjunction | Typical Function |
|---|---|---|
| 1 | And | Addition |
| 2 | But | Contrast |
| 3 | Or | Choice |
| 4 | Nor | Negative addition |
| 5 | For | Reason |
| 6 | Yet | Contrast / unexpected result |
| 7 | So | Result |
| 8 | Because | Reason |
| 9 | Although | Contrast |
| 10 | Though | Contrast |
| 11 | If | Condition |
| 12 | Unless | Condition (negative) |
| 13 | While | Time / contrast |
| 14 | When | Time |
| 15 | Before | Time |
| 16 | After | Time |
| 17 | Since | Time / reason |
| 18 | Until | Time |
| 19 | Whereas | Contrast |
| 20 | Whether | Choice / possibility |
The correct conjunction depends on the relationship between the ideas. Because shows reason, while although shows contrast.
What Are 50 Conjunction Examples?
A long conjunction list becomes more useful when the words are grouped by their function. Study these categories together to learn conjunctions faster.
Conjunctions for Addition
Conjunctions for Contrast
Conjunctions for Choice
Conjunctions for Reason
Conjunctions for Condition
Conjunctions for Time
Conjunctions for Purpose and Result
These examples provide more useful practice than memorizing a list without context.
Conjunction Rules You Should Know
These eight rules cover almost every conjunction question that appears in CSS, PPSC, FPSC, and international exams.
Rule 1 – Use Coordinating Conjunctions Correctly
Coordinating conjunctions connect equal grammatical units.
- Ali and Ahmed arrived.
- She wanted to leave but stayed.
The connected elements should have a logical relationship.
Rule 2 – Use a Comma Correctly With Independent Clauses
Use a comma before a coordinating conjunction when it joins two independent clauses.
- He was tired, but he continued working.
Do not add a comma simply because the word but appears.
- He was tired but continued working.
Rule 3 – Place Commas Correctly With Dependent Clauses
Use a comma when a dependent clause comes before the main clause.
- Because he was late, he missed the bus.
A comma is usually unnecessary when the main clause comes first.
- He missed the bus because he was late.
Rule 4 – Keep Correlative Structures Parallel
Use matching grammatical forms after paired conjunctions.
- She likes both reading and writing.
- He wants either to study or to work.
Rule 5 – Check Either and Or Constructions
With either…or, the verb often agrees with the subject closer to it.
- Either Ali or his friends are coming.
- Either his friends or Ali is coming.
This rule can appear in competitive-exam grammar questions.
Rule 6 – Check Neither and Nor Constructions
The same subject-verb principle applies to neither…nor.
- Neither Ali nor his friends are ready.
- Neither his friends nor Ali is ready.
Always examine the subject closest to the verb.
Rule 7 – Avoid Unnecessary Double Conjunctions
Some combinations create errors because they use two conjunctions unnecessarily.
Although he was tired, but he continued.
Although he was tired, he continued.
Because it was raining, so we stayed home.
Because it was raining, we stayed home.
Rule 8 – Choose Conjunctions According to Meaning
Do not choose a conjunction only because it sounds familiar. Use because for reason, although for contrast, and if for condition. The intended relationship should guide your choice.
What Are Conjunctive Adverbs?
Conjunctive adverbs can connect ideas, but they are not the same as coordinating conjunctions. They follow different punctuation rules.
Common examples include however, therefore, moreover, nevertheless, consequently, otherwise.
For example:
- He was tired; however, he continued working.
- She studied hard; therefore, she passed.
Notice the punctuation around the conjunctive adverb. Do not treat however exactly like but.
He was tired, however he continued working.
He was tired; however, he continued working.
Quick Rule – Conjunctive Adverb Punctuation
- Use a semicolon before the conjunctive adverb.
- Use a comma after the conjunctive adverb.
- This distinction is heavily tested in punctuation and sentence-correction questions.
Common Conjunction Mistakes
These seven mistakes appear again and again in CSS, PPSC, and FPSC sentence-correction questions. Learn them once and you will spot them instantly.
Mistake 1 – Using Although With But
Although he was tired, but he continued working.
Although he was tired, he continued working.
Mistake 2 – Using Because With So
Because it was raining, so we stayed home.
Because it was raining, we stayed home.
Mistake 3 – Using the Wrong Correlative Pair
Either Ali nor Ahmed will come.
Either Ali or Ahmed will come.
The correct pairs are either…or and neither…nor.
Mistake 4 – Breaking Parallel Structure
She likes both reading and to write.
She likes both reading and writing.
Mistake 5 – Misusing a Comma
He studied hard , and passed the test.
He studied hard and passed the test.
The comma is unnecessary when the conjunction does not join two independent clauses.
Mistake 6 – Treating However Like But
He was tired, however he continued working.
He was tired; however, he continued working.
Mistake 7 – Choosing a Conjunction Without Checking Meaning
She stayed home although she was sick.
She stayed home because she was sick.
The correct conjunction depends on what you want the sentence to mean.
How Can You Learn Conjunctions More Easily?
Start by learning conjunctions according to their function rather than memorizing one large list. Group them into categories such as addition, contrast, reason, condition, time, and choice.
Then create short sentences using each group. For example, learn these together:
- because for reason
- although for contrast
- if for condition
- when for time
- or for choice
Pay attention to conjunctions while reading English articles and books. This helps you understand how they work in natural sentences.
Writing your own examples is also useful. Correct repeated mistakes instead of memorizing long explanations.
Students who are reviewing the wider parts of English grammar can also study verbs, pronouns, and adjectives alongside conjunctions.
Study Strategy – Four Steps to Conjunction Mastery
- Step 1: Memorize the seven FANBOYS and their individual meanings.
- Step 2: Learn the four correlative pairs and their parallel-structure rules.
- Step 3: Group subordinating conjunctions by function (time, reason, condition, contrast, purpose).
- Step 4: Practice sentence correction daily and keep an error log of double-conjunction mistakes.
Conjunction Practice Questions
Test your understanding with these questions. Try to answer before checking the explanation.
1. Ali studied hard, ___ he passed the examination.
- but
- and
- or
- nor
Answer: B. and
The sentence adds the result of Ali’s hard work.
2. She stayed home ___ she was sick.
- because
- but
- or
- yet
Answer: A. because
Because introduces the reason for staying home.
3. ___ he was tired, he continued studying.
- Because
- Although
- Or
- So
Answer: B. Although
Although shows contrast between being tired and continuing to study.
4. You can take tea ___ coffee.
- because
- although
- or
- nor
Answer: C. or
Or presents a choice between two options.
5. Neither Ali ___ Ahmed attended the meeting.
- or
- and
- but
- nor
Answer: D. nor
The correct correlative pair is neither…nor.
6. Hurry up, ___ you will miss the bus.
- or
- because
- although
- since
Answer: A. or
Or expresses the consequence of failing to hurry.
7. She has worked here ___ 2020.
- although
- since
- but
- or
Answer: B. since
Since identifies the starting point of an action.
8. He is ___ intelligent but also hardworking.
- either
- neither
- not only
- whether
Answer: C. not only
The correct pair is not only…but also.
9. ___ you study regularly, you can improve your score.
- If
- But
- Yet
- Nor
Answer: A. If
If introduces a condition.
10. She waited ___ the teacher arrived.
- until
- but
- or
- yet
Answer: A. until
Until shows that the waiting continued up to a particular time.
Conjunctions for Competitive Exams
Conjunction questions often test whether candidates understand relationships between ideas. Students preparing for CSS, PMS, FPSC, PPSC, and similar competitive examinations should focus on usage rather than memorizing isolated words.
Important areas include:
- FANBOYS
- Subordinating conjunctions
- Correlative conjunctions
- Comma rules
- Parallel structure
- Subject-verb agreement
- Error detection
- Sentence correction
- Fill-in-the-blank questions
- Confusing conjunction constructions
Common Exam Question Patterns
He worked hard, ___ he could not pass.
- and
- but
- because
- so
Answer: B. but
The question tests contrast.
___ Ali nor Ahmed attended the meeting.
- Either
- Both
- Neither
- Whether
Answer: C. Neither
The correct pair is neither…nor.
Error-Detection Example
Although he was poor, but he was honest.
Although he was poor, he was honest.
Candidates should also review related grammar topics such as verb tenses and prepositions when preparing for English grammar sections.
Conjunction MCQs With Answers
1. Which word is a coordinating conjunction?
- Because
- Although
- And
- Unless
Answer: C. And
2. Which conjunction shows contrast?
- But
- Because
- Since
- If
Answer: A. But
3. Choose the correct pair.
- either…nor
- neither…or
- either…or
- both…or
Answer: C. either…or
4. Which conjunction introduces a condition?
- Although
- If
- But
- Yet
Answer: B. If
5. Choose the correct sentence.
- Although he was tired, but he worked.
- Although he was tired, he worked.
- Although he was tired so he worked.
- Although but he was tired, he worked.
Answer: B. Although he was tired, he worked.
6. Which word is a subordinating conjunction?
- And
- But
- Because
- Or
Answer: C. Because
7. Choose the correct sentence.
- Neither Ali or Ahmed came.
- Neither Ali nor Ahmed came.
- Either Ali nor Ahmed came.
- Both Ali nor Ahmed came.
Answer: B. Neither Ali nor Ahmed came.
8. Which conjunction expresses a choice?
- Or
- Yet
- Because
- Although
Answer: A. Or
9. Which sentence uses parallel structure correctly?
- She likes both reading and to write.
- She likes both reading and writing.
- She likes both to read and writing.
- She likes both read and writing.
Answer: B. She likes both reading and writing.
10. Which sentence uses however correctly?
- He was tired, however he continued.
- He was tired however, he continued.
- He was tired; however, he continued.
- He was tired however he continued.
Answer: C. He was tired; however, he continued.
Frequently Asked Questions
Common questions about conjunctions from CSS, PPSC, FPSC aspirants and international learners.
A conjunction is a word that connects words, phrases, clauses, or sentences. Examples include and, but, or, because, although, if, and since.
The three main types are coordinating, subordinating, and correlative conjunctions. A fourth related category is conjunctive adverbs (however, therefore), which connect ideas but follow different punctuation rules.
The seven FANBOYS conjunctions are for, and, nor, but, or, yet, and so. These are the seven coordinating conjunctions in English.
Ten common examples are and, but, or, nor, because, although, if, unless, while, and since.
Twenty common conjunctions include and, but, or, nor, for, yet, so, because, although, though, if, unless, while, when, before, after, since, until, whereas, and whether.
There is no official set of exactly fifty conjunctions. Useful examples include and, but, or, nor, for, yet, so, because, although, though, if, unless, while, when, before, after, since, until, whereas, whether, either…or, neither…nor, both…and, not only…but also, and many others.
Coordinating conjunctions connect elements of equal grammatical importance (words, phrases, or independent clauses). Subordinating conjunctions connect a dependent clause with an independent clause.
Correlative conjunctions are paired words that work together. Common examples include either…or, neither…nor, both…and, and not only…but also.
Yes. A sentence can begin with conjunctions such as and, but, or, and so when the construction is appropriate. Starting with a subordinating conjunction is also common and grammatically correct: Although he was tired, he continued studying.
A conjunction directly connects grammatical elements. A conjunctive adverb such as however or therefore connects related ideas while following different punctuation rules – typically a semicolon before it and a comma after it.
Correlative conjunctions should connect structures that match grammatically. Both reading and writing is correct; both reading and to write is not. Matching structures make sentences clearer and more balanced – and are frequently tested in competitive exams.
Use a comma before a coordinating conjunction when it joins two independent clauses: He was tired, but he continued working. Do not use a comma when the conjunction joins words or phrases: He was tired but continued working.
Double conjunctions – using although with but, or because with so. Only one conjunction is needed. Also common: wrong correlative pairs (either…nor), broken parallel structure, and treating however like but.
Conjunctions typically account for 1–3 questions per paper, often combined with subject-verb agreement and sentence-correction items. The same FANBOYS pairs and correlative pairs repeat across papers year after year.
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