Conjunction Words

When I was learning to speak fluently, my biggest breakthrough came the moment I stopped thinking of conjunctions as “just connecting words” and started seeing them as the glue that holds complex thoughts together. Suddenly, my students who were struggling with sentence structure realized they could express multiple ideas in one smooth flow — and their writing improved overnight. Mastering conjunctions is one of the fastest ways to jump from simple to sophisticated English.

You need to know three types: coordinating (and, but, or), subordinating (because, although, when), and correlative (either…or, both…and). I’ll show you how each type works in real sentences, give you test cases to practice with, and help you see which conjunctions fit which situations — so your writing flows naturally instead of sounding choppy.

Understanding Conjunction Words

What Are Conjunctions?

Conjunctions are words that connect different parts of a sentence — words, phrases, or clauses — allowing you to express complex thoughts and ideas in a concise and organized way. Without conjunctions, every idea would stand alone, and your writing would feel choppy and disconnected.

Example with choppy sentences (no conjunctions): “I went to the store. I bought milk. I bought bread. I bought cheese.” — This feels disconnected.

Example with conjunctions: “I went to the store and bought milk, bread, and cheese.” — Much cleaner and more natural.

Coordinating Conjunctions (FANBOYS)

Coordinating conjunctions connect words, phrases, or independent clauses that are of equal grammatical importance. There are exactly seven, and they’re easy to remember using the acronym FANBOYS 🔊 🎤.

Conjunction	Use	Example
For	To give a reason or explanation	“I studied hard, forI wanted to pass the exam.”
And	To add one idea to another	“She is intelligent and creative.”
Nor	To connect two negative ideas	“I don’t like coffee, nor do I like tea.”
But	To express contrast or exception	“I like running, but I prefer swimming.”
Or	To give a choice between two options	“Do you want coffee or tea?”
Yet	To express contrast or contradiction	“He is tired, yet he continues working.”
So	To express result or consequence	“It was raining, so we stayed inside.”

Punctuation rule: When a coordinating conjunction joins two independent clauses, place a comma before the conjunction.

Example: “She wanted to go outside, but it was too cold.” (comma before “but”)

Subordinating Conjunctions

Subordinating conjunctions connect a dependent clause (a clause that cannot stand alone) to an independent clause (a clause that can stand alone). The subordinating conjunction shows the relationship between the two clauses — one is more important than the other.

Conjunction	Use	Example
Although / Though	To express contrast or concession	“Although it was raining, we went for a walk.”
Because	To give a reason or cause	“I stayed home because I was feeling sick.”
Before	To show time sequence	“Before you leave, turn off the lights.”
If	To express a condition	“If it rains, we will cancel the picnic.”
Since	To indicate a point in time or reason	“I have been studying Spanish since 2020.”
Unless	To express a negative condition	“I won’t go unless my friend comes with me.”
When / While	To indicate time or simultaneous action	“When I finish my work, I’ll call you.”

Punctuation rule: When a subordinating conjunction begins the sentence, use a comma after the dependent clause. If the dependent clause comes after the independent clause, no comma is needed.

Example (comma needed): “Because 🔊 🎤 it was raining, we stayed inside.”

Example (no comma needed): “We stayed inside because 🔊 🎤 it was raining.”

Correlative Conjunctions

Correlative conjunctions are pairs of words that work together to connect two equal ideas. They come in fixed pairs and must be used together.

• Either…or: To show a choice between two options. Example: “You can either 🔊 🎤 come with me or stay at home.”
• Neither…nor: To express a negative choice. Example: “I like neither 🔊 🎤 coffee nor 🔊 🎤 tea.”
• Both…and: To show that two things are true at the same time. Example: “She is both 🔊 🎤 intelligent and creative.”
• Not only…but also: To indicate that two things are true, and the second is important or surprising. Example: “She speaks not only 🔊 🎤 Spanish but also 🔊 🎤 French and German.”

Key rule: The structure after each word in the pair must be parallel (the same type of word or phrase).

✗ Incorrect: “She is not only smart but also runs fast.” (adjective + verb = not parallel)

✓ Correct: “She is not only smart but also athletic.” (adjective + adjective = parallel)

Common Mistakes with Conjunctions

Mistake 1: Using too many conjunctions in a single sentence

✗ Incorrect: “I went to the store and I bought milk and I bought bread and I bought cheese and I came home and I made dinner.”

✓ Correct: “I went to the store and bought milk, bread, and cheese, then I came home and made dinner.”

Why: Excessive conjunctions make sentences hard to read. Use punctuation (commas, semicolons) to create natural rhythm, and reserve conjunctions for truly important connections.

Mistake 2: Using the wrong conjunction for the context

✗ Incorrect: “I wanted to go to the beach, and it was raining.” (This suggests two equal ideas, but the second contradicts the first.)

✓ Correct: “I wanted to go to the beach, but it was raining.” (This correctly shows the contrast.)

Why: Each conjunction has a specific meaning. Using the wrong one changes the meaning of your sentence and confuses readers.

Mistake 3: Placing a conjunction at the start of a sentence incorrectly

Note: Starting a sentence with a coordinating conjunction (And, But, Or, So) was once considered incorrect, but modern English accepts it — especially in casual writing and speech. However, subordinating conjunctions (Because, Although, Since) are always acceptable at the start of a sentence.

Modern example: “I studied hard. But I still failed the exam.” — Now widely accepted in contemporary writing.

Mistake 4: Breaking parallel structure with correlative conjunctions

✗ Incorrect: “She not only is smart but also runs fast.” (Awkward phrasing breaks flow.)

✓ Correct: “She is not only smart but also athletic.” (Parallel structure is clear.)

Why: Correlative conjunctions require that the words or phrases that follow them have the same grammatical structure.

Sample Dialogue: Clarifying Conjunction Use

Quick Quiz

How to Use Conjunctions to Improve Your Writing

Conjunctions are the bridge between simple and sophisticated writing. Using them effectively means matching the right conjunction to your thought:

• Combine short sentences: Turn five choppy sentences into two or three smooth ones using the right conjunction.
• Show relationships: Use subordinating conjunctions to clarify whether one idea is a cause (because), a condition (if), a contrast (although), or a time sequence (when).
• Create parallel structure: Use correlative conjunctions to balance ideas and make your writing more memorable and persuasive.
• Avoid overuse: Use conjunctions strategically. Too many conjunctions make writing feel rushed and disjointed; too few makes it choppy.

Example of improved writing:

Before: “I wanted to travel. I couldn’t afford it. I started saving money. I worked extra shifts. I was able to book a trip.”

After: “Although I wanted to travel and couldn’t afford it initially, I started saving by working extra shifts. So I was finally able to book a trip.” (Conjunctions clarify relationships and reduce choppiness.)

Related Articles

• English Sentence Structure — how to build complex and compound sentences
• ↑ Back to pillar: English Vocabulary (Topical)

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