Editing for comma splices and fused sentences
If you find no punctuation between two of your independent clauses—groups of words that can stand alone as sentences—you have identified a fused sentence. If you find two such clauses joined only by a comma, you have identified a comma splice. Revise comma splices and fused sentences with one of these methods.
If the clauses are linked with only a comma and a conjunctive adverb—a word like however, then, therefore—add a semicolon.