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Common Mistakes
Here are common errors to check for when you edit.
1. Missing Comma in a Compound Sentence
Use a comma between two independent clauses (complete sentences) joined by a coordinating conjunction—and, but, or, nor, for, so, or yet. (See page 484.)
2. Comma Splices
Do not use a comma alone to join two independent clauses. (See page 484.)
3. Missing Commas in a Series
Use commas to separate three or more words, phrases, or clauses in a series. (See page 482.)