Comma Splice

A man plays a saxophone at sunset.Comma splices live in the same neighborhood as run-on sentences. Often, when a writer attempts to break up a run-on sentence using only a comma, they end up creating a comma splice.

A comma splice occurs when only a comma separates two independent clauses. Independent clauses could be complete sentences on their own. A comma is not strong enough to perform this function, which causes the problem. It’s important to remember to use proper punctuation to separate your independent clauses; otherwise, you end up with a sentence like this:

The roaming jazz man told me he would never disturb me again, the next night, he was playing saxophone under my balcony again.

Writers have a few options when dealing with comma splices:

  • Use periods to break up the writing into multiple sentences.
  • Use a conjunction (yet, but, so, etc.)
  • Use a semicolon, with or without a conjunctive adverb (however, therefore, otherwise, etc.)

Breaking the comma splice into two sentences is usually the simplest method:

The roaming jazz man told me he would never disturb me again. The next night, he was playing saxophone under my balcony again.

However, some writers might feel this makes their work feel choppy. In cases like that, a conjunction might be desirable.

The roaming jazz man told me he would never disturb me again, but, the next night, he was playing saxophone under my balcony again.

For more formal pieces of writing, a semicolon and conjunctive adverb might be the preferred way to fix a comma splice.

Research shows that roaming jazz men are the leading cause of disrupted sleep in many neighborhoods, police forces infiltrated by hepcats has led to a lack of prosecution.
Research shows that roaming jazz men are the leading cause of disrupted sleep in many neighborhoods; however, police forces infiltrated by hepcats has led to a lack of prosecution.

Recognizing and correcting comma splices will add flow and clarity to your work. How you structure your sentences might vary from assignment to assignment, so don’t be afraid to experiment with the different options we’ve outlined above. In time, you’ll discover your own style and eliminate comma splices without even thinking about it.

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