Simple and Compound Sentences

Learning to tell simple and compound sentences apart is one of the fastest ways to improve your writing, since mixing the two naturally creates rhythm and keeps readers engaged. Below, we break down what makes a sentence simple, what makes it compound, and how the FANBOYS coordinating conjunctions connect the two. For additional practice beyond simple and compound sentences, see this Grammarly guide to sentence types.

What is a simple Sentence?

A simple sentence is a sentence that consists of one independent clause. An independent clause is a group of words that has a subject and verb and can stand alone as a complete thought. A dependent clause is a clause that has a subject and a verb but cannot stand alone as a complete thought.

Here are some examples of simple sentences 

The boy kicks the ball.

Subject = boy; verb = kicks

I am reading a book.

Subject = I; verb = am reading

The vast majority of sentences we encounter in everyday life are simple sentences. In fact, most of the sentences we speak or write are simple sentences. That’s because simple sentences are very efficient at conveying information. They are easy to understand and easy to remember.

However, simple sentences can also be quite dull and monotonous. That’s why we sometimes need to spice up our Writing by using compound sentences.

What is a compound sentence?

A compound sentence is two or more independent clauses joined by a coordinating conjunction. A coordinating conjunction is a word that connects two independent clauses.The most common coordinating conjunctions are “for,” “and,” “nor,” “but,” “or,” “yet,” and “so.” If you can remember this acronym, FANBOYS, then you will always know which words are coordinating conjunctions.Coordinating conjunctions add variety and interest to your Writing.

What is “ FANBOYS”? 

FANBOYS is an acronym that stands for For, And, Nor, But, Or, Yet, and So. It is a mnemonic device that is used to remember the order of the seven coordinating conjunctions in English. The acronym FANBOYS can help you remember the order of the coordinating conjunctions because each letter in the acronym represents the first letter of a coordinating conjunction. They are used to show addition, contrast, or both.

Why is the acronym “FANBOYS” a handy tool in Writing? 

It’s a handy tool because it can help you remember the order of operations when you’re writing.

Here is an example of how the coordinating conjunctions are used: 

I requested her to go, for I was very tired after the game. (Because)

I am reading a book, and I am drinking coffee. (In addition)

I don’t expect my son to be rude, nor do I expect to be disobeyed. (and not) 

He is tall, but his brother is short. (contrast) 

I am going to play football, or I am going to watch a movie after class.

 ( showing two possibilities/choices) 

I am studying, yet I still don’t feel confident about my exam. (but) 

I was hungry yesterday, so I went to the restaurant. (Because)