A clause is a group of words that contains a verb (and usually other components too). A clause may form part of a sentence or it may be a complete sentence in itself.
independent clause. a clause that can form a complete sentence standing alone, having a subject and a predicate.
subordinate clause. a subordinate clause is a clause that cannot stand alone as a complete sentence
adjective clause. a dependent clause that modifies a noun or pronoun
adverbial clause. a dependent clause that functions as an adverb.
noun clause. a dependent clause that acts as a noun.
