Coordinating conjunctions allow you to connect ideas without starting a new sentence every few words. These parts of speech join words, phrases, and independent clauses of equal grammatical importance. Without them, our writing would be a series of short, choppy sentences.
In this guide, you will learn how to use the seven coordinating conjunctions—often remembered by the acronym FANBOYS—to improve your sentence variety and flow.
What are coordinating conjunctions?
A coordinating conjunction is a word that connects two or more elements that have the same “weight” in a sentence. This could be two nouns, two verbs, or two complete thoughts (independent clauses).
Unlike subordinating conjunctions, which create a relationship of dependency, coordinating conjunctions keep the elements balanced.
The FANBOYS acronym
The easiest way to remember all seven is through the acronym FANBOYS:
- For
- And
- Nor
- But
- Or
- Yet
- So
The 7 coordinating conjunctions: Rules and examples
Each of the FANBOYS serves a specific logical purpose. Use the table below for a quick reference on when to use each one.
Quick reference table
| Conjunction | Function | Example Sentence |
| For | Explains a reason (similar to “because”) | He was tired, for he had stayed up late. |
| And | Adds one thing to another | I bought apples and oranges. |
| Nor | Presents a second negative idea | He doesn’t like tea, nor does he like coffee. |
| But | Shows contrast or exception | I want to go, but I have no money. |
| Or | Offers a choice or alternative | Should we go out or stay home? |
| Yet | Shows a surprising contrast | It was sunny, yet it felt very cold. |
| So | Indicates a result or effect | It was raining, so we took a taxi. |
1. For (Reason)
While “for” is less common in modern conversation than “because,” it is still used in formal writing to introduce a reason.
- Example: I brought an umbrella, for the forecast predicted rain.
2. And (Addition)
This is the most common conjunction. It simply adds information or connects similar ideas.
- Example: She plays the piano and the violin.
3. Nor (Negative addition)
“Nor” is used to present a second negative thought. Note that when using “nor” to connect two clauses, the sentence structure usually flips (inversion).
- Example: He did not study, nor did he pass the exam.
Pro tip: When using “nor” to join two independent clauses, you must use “S-V inversion.” This means you swap the subject and the verb (e.g., “Nor did he” instead of “Nor he did“).
4. But (Contrast)
Use “but” to show a clear difference or a conflict between two ideas.
- Example: The food was expensive, but it wasn’t very good.
5. Or (Choice)
This conjunction presents a choice between two or more options.
- Example: You can have the cake or the ice cream.
6. Yet (Unexpected contrast)
“Yet” is very similar to “but,” but it implies a sense of surprise or something happening despite a previous fact.
- Example: She is eighty years old, yet she still runs marathons.
7. So (Result)
“So” connects a cause to a result.
- Example: I was hungry, so I made a sandwich.
Punctuation rules for coordinating conjunctions
One of the biggest mistakes writers make is misplaced commas. Follow these two simple rules:
- Connecting items in a list: Do not use a comma when connecting two words or short phrases (e.g., “bread and butter”). Use commas for a list of three or more items.
- Connecting independent clauses: When you use a coordinating conjunction to join two complete sentences, you must place a comma before the conjunction.
- Correct: I went to the store, and I bought milk.
- Incorrect: I went to the store and I bought milk.
- What about the Oxford Comma? In a list of three or more items, the comma before the coordinating conjunction (e.g., “Apples, oranges, and bananas”) is known as the Oxford Comma. While optional in some style guides, using it prevents ambiguity in complex sentences.
Frequently asked questions about coordinating conjunctions
Visual tools to help you learn
If you’re a visual learner or are still left confused, watch these videos to help explain using these conjunctions.
The FANBOYS: Coordinating conjunctions
Interactive learning video
Practical tips for ESL learners
- Focus on “And,” “But,” and “So”: These are used in over 90% of daily English conversations. Master these first before moving to “Nor” or “For.”
- Identify the relationship: Before choosing a conjunction, ask yourself: Am I adding information (And), showing a choice (Or), or showing a result (So)?
- Read aloud: If a sentence feels too long, see if you can break it into two by using a coordinating conjunction and a comma.
Conclusion: Mastering the FANBOYS
Coordinating conjunctions are the simplest way to transform choppy, repetitive sentences into fluid, professional prose. By mastering the seven FANBOYS, you gain the ability to show clear relationships between your ideas, whether you are contrasting facts with “but” or showing results with “so.”
While these seven words are small, their impact on your writing clarity and flow is massive. Start by practicing with “and,” “but,” and “or” in your daily writing, and soon the more formal conjunctions like “for” and “nor” will feel like a natural part of your vocabulary.
What is your favorite way to use conjunctions?
We want to hear from you! Which of the FANBOYS do you find the most difficult to use in a sentence? Is “nor” still a bit confusing, or are you a pro at using “yet” for surprising contrasts?
Drop a comment below with an example sentence using one of the coordinating conjunctions we covered today. If you found this guide helpful, share it with a friend or a fellow English learner to help them master their grammar too!
Continue your grammar journey
If you found this guide helpful, explore our other resources:
- Types of conjunctions in English: An overview
- Conjunctive adverbs: How to transition between ideas
- Correlative conjunctions: Using word pairs
- Subordinating conjunctions: Building complex sentences
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