An _________________ ________________ expresses a complete thought, may be a sentence. They can be linked by commas, semi-colons, coordinating conjunctions (for, so, yet, but, and, nor), or conjunctive adjectives (then, also, otherwise, nevertheless, furthermore). A _____________ _____________ is a subordinate clause that modifies a verb, an adjective, or an adverb, usually introduced by a subordinating conjunction (unless, until, while, whether, wherever, so that, as well as, although, after). It tells how, when, where, why, and to what extent. A ___________ ______________ is a subordinate clause that is used as a noun (the subject, predicate nominative, direct object, indirect object, or object of a preposition). Words that introduce these are why, whose, whomever, whichever, which, whether, where, how, that, what, whatever, when.