Subordinate clauses are dependent clauses that cannot stand alone as complete sentences. They provide additional information to the main clause and usually begin with subordinating conjunctions.
Related terms
Independent Clauses: Clauses that can stand alone as complete sentences.
Complex Sentences: Sentences that contain both an independent clause and one or more subordinate clauses.
Relative Pronouns: Words such as "who," "whom," "whose," "which," and "that" used to introduce subordinate clauses.