Welcome to the Conjunctions Chapter!

Hello future grammar experts! This chapter is all about conjunctions—the secret glue that holds sentences and ideas together.
Mastering conjunctions is vital for your International GCSE because it allows you to write longer, more complex, and more interesting sentences. If you feel stuck writing only short, simple sentences, conjunctions are the key to unlocking fluency!

Don’t worry if this seems tricky at first. We will break down these linking words into three simple, manageable groups.

What is a Conjunction?

A conjunction is a word that joins two or more words, phrases, or clauses (parts of sentences).

Think of conjunctions as the connectors or bridges in language. Without them, your writing would sound choppy, like this:

  • I like tea. I like coffee.

Using a conjunction, it flows better:

  • I like tea and coffee.

Type 1: Coordinating Conjunctions

Coordinating conjunctions are used to join things that are equal in importance or grammar. They are perfect for linking two simple sentences (called independent clauses) or two simple ideas.

Analogy: Imagine two equally important friends walking side-by-side. The coordinating conjunction is the hand holding them together.

The FANBOYS Mnemonic

To remember the seven coordinating conjunctions, use the simple and famous mnemonic: FANBOYS.

Let’s break down what each letter stands for:

  • F = For (Meaning: because/since. Often used formally.)
    Example: She went to the doctor, for she felt sick.
  • A = And (Meaning: addition/joining.)
    Example: I studied English and History.
  • N = Nor (Meaning: not either. Used when joining two negative statements.)
    Example: He doesn't read books, nor does he watch films.
  • B = But (Meaning: contrast/opposite idea.)
    Example: The food was cheap, but it tasted delicious.
  • O = Or (Meaning: choice/alternative.)
    Example: Would you prefer pizza or pasta?
  • Y = Yet (Meaning: contrast, similar to 'but' or 'nevertheless'.)
    Example: The task was difficult, yet he finished it quickly.
  • S = So (Meaning: result/consequence.)
    Example: It started raining heavily, so we went inside.

! Punctuation Tip for Coordinating Conjunctions

When you use a coordinating conjunction (FANBOYS) to join two complete sentences (where both sides could stand alone), you must place a comma before the conjunction.

  • Incorrect: We missed the bus so we were late.
  • Correct: We missed the bus, so we were late.

If you are only joining two words or phrases, do not use a comma.

  • Correct: I need a pen and a notebook. (No comma needed.)

Key Takeaway for Type 1: FANBOYS join equal ideas. Remember the comma rule when connecting two full sentences.

Type 2: Subordinating Conjunctions

Subordinating conjunctions are used to join unequal parts of a sentence: an independent clause (which can stand alone) and a dependent clause (which cannot stand alone and needs the main clause).

Analogy: The independent clause is the main engine of the train, and the dependent clause is the smaller carriage that follows it. The subordinating conjunction is the coupling mechanism.

Subordinating conjunctions tell us when, why, how, or under what condition the main action happened.

Common Categories of Subordinating Conjunctions (CEFR B1 Focus)

Here are the most common conjunctions you must know, grouped by their function:

1. Time (Tells us when something happened):

  • after, before, when, while, as soon as, until
  • Example: While I was cooking, the phone rang.

2. Cause/Reason (Tells us why something happened):

  • because, since, as
  • Example: We stayed home since it was snowing outside.

3. Contrast/Concession (Introduces an unexpected or opposite idea):

  • although, though, even though, whereas
  • Example: Although the weather was cold, we enjoyed the picnic.

4. Condition (Introduces a condition that must be met):

  • if, unless
  • Example: I will fail the test unless I study tonight.

! Punctuation Tip for Subordinating Conjunctions

Unlike coordinating conjunctions, the comma rule here depends on position:

Rule 1: Starting with the Main Clause (No Comma)
If the main idea comes first, you generally do not use a comma.

  • Example: The meeting was cancelled because the manager was ill.

Rule 2: Starting with the Dependent Clause (Use a Comma)
If you start the sentence with the subordinating conjunction and the dependent clause, you must follow it with a comma.

  • Example: Because the manager was ill, the meeting was cancelled.

Did you know? This comma rule is often called the "switch rule." If you switch the dependent clause to the front, you must switch on the comma!

Key Takeaway for Type 2: Subordinating conjunctions link unequal ideas and usually show time, reason, or contrast. If the dependent clause starts the sentence, use a comma.

Type 3: Correlative Conjunctions

Correlative conjunctions are conjunctions that work in pairs. They must always be used together to connect grammatically equal elements (like two nouns, two verbs, or two adjectives).

Essential Correlative Pairs (B1 Level)

Focus on these three pairs:

1. Both... and

  • Used to join two things together positively.
  • Example: Both swimming and running are good exercise.

2. Either... or

  • Used to present a choice between two alternatives.
  • Example: You can either pay now or pay later.

3. Neither... nor

  • Used to join two things negatively (meaning "not one and not the other").
  • Example: He likes neither broccoli nor cabbage.

A Crucial Point: Parallel Structure

When using correlative conjunctions, make sure the grammar on both sides of the conjunction is the same. This is called parallel structure.

  • Correct: She is interested in not only singing but also dancing. (Both are -ing forms/gerunds)
  • Incorrect: She is interested in not only singing but also to dance. (Mismatch of forms - avoid!)

Key Takeaway for Type 3: Correlative conjunctions always come in pairs and require parallel structure.

Review and Common Mistakes to Avoid

Mistake 1: Using 'Because' and 'So' Together

In formal writing, avoid combining cause (because) and result (so) in the same sentence, as they perform similar functions.

  • Incorrect: Because it was cold, so I put on a jacket. (Redundant!)
  • Correct (Option 1 - Cause first): Because it was cold, I put on a jacket.
  • Correct (Option 2 - Result first): It was cold, so I put on a jacket.

Mistake 2: Missing the Comma with Subordinating Clauses

This is a very common error! Remember the "switch rule." If the dependent clause starts the sentence, you need the comma.

  • If I leave now I will be late. (Missing comma)
  • If I leave now, I will be late. (Correct)

Quick Review Box

FANBOYS (Coordinating)

Joins equal parts. Use a comma before the conjunction when joining two full sentences.

Subordinating Conjunctions (e.g., If, Although, Because)

Joins unequal parts (main + subordinate clause). Use a comma ONLY if the subordinate clause starts the sentence.

Correlative Conjunctions (e.g., Both... and)

Works in pairs and requires parallel structure.

You have now covered the essentials of conjunctions at the B1 level. Keep practicing how to connect your ideas smoothly, and you will see a massive improvement in your essay writing!