This document defines and provides examples of complex sentences containing both an independent clause and a dependent clause. It explains that a dependent clause begins with a subordinating conjunction and cannot stand alone as a complete thought. It lists commonly used subordinating conjunctions like "although", "because", "if", and "when" and provides the mnemonic device "WASABI" to help remember some of them. The document also notes punctuation rules regarding comma usage for complex sentences depending on whether the dependent or independent clause comes first.