1. A compound sentence contains two or more independent clauses
and has no dependent clauses.
Definitions:

- A clause, but NOT A PHRASE, contains a subject and a predicate.

- An independent clause contains a subject and a predicate and can stand alone as a complete sentence. It is not introduced by a subordinating word.

- A dependent clause, although it contains a subject and a predicate, cannot stand alone as a complete sentence but relies upon the independent clause to complete its meaning.

A dependent clause is ordinarily introduced by such words as WHEN, SINCE, AS, WHO, AFTER, ALTHOUGH, THAT, and WHICH.

1. A compound sentence contains two or more independent clauses and has no dependent clauses.
- Most business letters should not bubble with happiness, but they should be optimistic and pleasant.
- The FBI has proved themselves expert in solving crimes; consequently, local police often seek their support.
- "They are generous-minded; they hate shams and enjoy being indignant about them; they have no notion of confining books to a library shelf." (E.M. Forster, ASPECTS OF THE NOVEL)