Using the Comma Use commas to separate three or more items in a series. He is taking biology, English, history, and music.
Their options were going to a movie, going to Astroworld, or going to the beach.
Eggs, muffins, toast, and cereal were available for breakfast.
Use commas before a coordinating conjunction (for, and, nor, but, or, yet, so) that combines sentences. I didn't return her call last night, for it was too late when I got home.
She forgot her homework, and she wasn't prepared for the test.
She didn't want to stay very late, nor did she want to walk home alone.
He wanted to be on time for work, but he forgot to set his alarm.
You may stay and complete your assignment now, or you may finish the work at home.
They wanted to attend the presentation, yet they hadn't registered.
Their first choice was not available, so they were given their second choice.
Use commas to set off introductory phrases and clauses. When I study, I have to have a quiet place with good lighting.
If you get anxious, try imagining yourself in a peaceful setting.
Although she wanted to go, she knew she would be in trouble if she got caught.
Use commas to set off nonessential elements (those which are not essential to the meaning of the sentence). The movie, which was too long, had unrealistic characters and a poorly developed plot.
The child, who was lost in the store, was crying for her mother.
The car, which had been through an accident, required tremendous repair.
Use commas to separate two or more coordinate adjectives that describe the same noun. The curious, enthusiastic child scurried through the kitchen.
The new student was a serious, dedicated scholar.
The old, dilapidated building was finally renovated.
