comma splices

What is a Comma Splice?

To find out, we first have to begin with complete sentences.

Complete Sentences Have

A subject (the noun performing the verb).

He sings.

A verb (the verb tied to the noun).

He sings.

And a complete thought (the sentence makes sense).

Comma splices

Are called by that name because they are two or more sentences crammed together with only a comma for punctuation.

Examples:

Juliana regrets cutting her own hair, she will visit a stylist to fix it.

My cat only wants attention when I'm doing homework, I'm trying to write a paper.

I plan to run a marathon, I have only run one mile so far.

Listen

Read the above sentences aloud. These are a bit harder to hear than fragments or fused sentences, and you'll notice the comma gives a short pause. However, sentences need a l o n g e r pause between them.

Think of sentences as people on a crowded train. They don't like being cramped together and need breathing room!

We can give them that through more punctuation than a comma. A comma is not quite enough space.

Fixing comma splices

Add a period

Simply change the comma to a period.

Examples:

Juliana regrets cutting her own hair. She will visit a stylist to fix it.

My cat only wants attention when I'm doing homework. I'm trying to write a paper.

I plan to run a marathon. I have only run one mile so far.

Add a FANBOYS (coordinating conjunctions) after the comma

FANBOYS (For, And, Nor, But, Or, Yet, So) can connect sentences with a comma, even though a comma alone cannot connect two sentences. Read more on FANBOYS here.

Examples:

Juliana regrets cutting her own hair, so she will visit a stylist to fix it.

My cat only wants attention when I'm doing homework, and I'm trying to write a paper.

I plan to run a marathon, yet I have only run one mile so far.


Replace the comma with a subordinating conjunction

Subordinating words can connect sentences without the use of a comma. Read more on subordinating words here. Common examples are after, although, because, if, since, while, until, unless, before, which, even though.

Examples:

Juliana regrets cutting her own hair which is why she will visit a stylist to fix it.

My cat only wants attention when I'm doing homework even though I'm trying to write a paper.

I plan to run a marathon although I have only run one mile so far.

Need a video?

Comma Splices (infographic)

Presentation mode here.

Practice with our comma splices quiz!