simple, compound and complex sentences

a COMPLEX SENTENCE consists of a dependent clause that starts with WHILE, IF, BECAUSE, WHEN, AS, UNTIL,SINCE and an independent clause (complete sentence)
A COMPOUND SENTENCE is two sentences in one. Find a word like AND, BUT, FOR, OR and if a complete sentence follows, you have a complete sentence
a SIMPLE SENTENCE has only one independent clause
It may have more than one subject or verb
A COMPOUND-COMPLEX Sentence consists of one dependent clause and two indenpendent clauses