This document discusses different types of sentences: simple, compound, complex, and compound-complex. It provides examples of each type and explains their key characteristics. A simple sentence contains one subject and one predicate. A compound sentence contains two or more independent clauses joined with coordinating conjunctions. A complex sentence contains one independent clause and one or more dependent clauses joined by subordinating conjunctions. A compound-complex sentence is a combination of the previous types. Exercises are included for the reader to identify each sentence structure.