Compound sentences can be found in almost any literary work of considerable length. A compound sentences is formed when two independent clauses (one that is "strong" or complete enough to stand on its own) are joined to become one longer sentence. A compound sentences can be created by joining the two clauses using a comma and conjunction, a semicolon, or a semicolon and conjunctive adverb. It is extremely important to note that a conjunction MUST accompany a comma when it is used to make a compound sentence; otherwise, a comma splice is formed.
There are many examples of compound sentences in Romeo and Juliet. In the first scene of Act I, Benvolio anticipates Romeo's approach and tells his parents, "...So, please you step aside; I'll know his grievance, or be much denied." Many of the compound sentences found in the play are complex, so this is one of the more basic examples to be found.