Comma Splice
Grammar Cheat Sheet
Have you ever been uncertain when to use a comma before “and”? Here is a simple guide to make sure your commas appear in the right places!
Use a comma when…
connecting items
Commas help to connect three or more items in a series.
Sam ate a slice of pizza, a sandwich, a burrito, and a waffle before her tennis training.
Sam ate a slice of pizza, and a sandwich before her tennis training.
connecting clauses
Commas help to connect two independent clauses in a sentence.
Sam ate too much for lunch, and she is too full to exercise.
Sam ate too much for lunch, and is too full to exercise.
Tip: Do not use a comma when you connect an independent and a dependent clause in a sentence