This document defines and provides examples of different types of sentences: declarative sentences make statements and use periods, interrogative sentences ask questions and use question marks, exclamatory sentences express strong feelings and use exclamation points, imperative sentences give commands or requests and can use periods or exclamation points depending on emotion. It also defines simple sentences with one clause, compound sentences with two independent clauses joined by coordinators, complex sentences with one dependent clause and one independent clause, and compound-complex sentences with two independent clauses and one or more dependent clauses.