The document defines and provides examples of different types of sentences: interrogative sentences end in question marks and ask questions; declarative sentences end in periods and make statements; exclamatory sentences end in exclamation points and convey strong emotion; imperative sentences end in periods and give commands; simple sentences contain one independent clause; complex sentences have one independent and one dependent clause; compound sentences contain two independent clauses; and compound-complex sentences contain two independent clauses and one dependent clause.