This document defines and provides examples of different types of adverb clauses. Adverb clauses function as adverbs to describe time, place, manner, purpose or condition. The main types are: 1) Adverb clauses of time use conjunctions like "when", "before", "after" to indicate when something happens. 2) Adverb clauses of place use conjunctions like "where", "wherever" to indicate where something happens. 3) Adverb clauses of purpose use conjunctions like "so that", "in order that" to indicate why something happens. 4) Adverb clauses of condition use conjunctions like "if", "unless" to indicate circumstances under which something happens