Complex Sentences A complex sentence contains one independent clause , and one or more dependent clauses . While independent clauses are simple sentences, dependent clauses do not form a complete idea. They cannot function alone as a sentence. A dependent clause must be joined with an independent clause in order to form a sentence. If there is no independent clause, the word group is called a sentence fragment .
Dependent conjunctions indicate the clause's relationship to the rest of the sentence.
Adverbial Clauses after although as if as because before even though if in order that rather than since so that than though unless until when where whenever whether while b.