Compound: Compound sentences also contain only independent clauses - two or more of them.

Complex: Complex sentences have both an independent and one or more dependent clauses.

Compound: Have two independent clauses joined by a comma, semicolon or conjunction. An independent clause is a clause that has a subject and verb and forms a complete thought: "This house is too expensive, and that house is too small."

Complex: A complex sentence is made up of a main clause and a subordinate clause connected to each other with a subordinating conjunction: "Although she was tired, she kept working." (dependent clause + independent clause)

COMPUND: She did not cheat on the test, for it was the wrong thing to do.

COMPLEX: He left the party early because he had to work in the morning.