This document discusses verbs and their functions in sentences. It defines verbs as words that express actions or states of being. Verbs can be either action verbs or linking verbs. The tense of a verb indicates when the action occurs - present, past, or future. Helping verbs are used along with main verbs to indicate tense. Common helping verbs include forms of "be", "have", and "do". Verb forms change based on person, number, and tense. Examples are provided to illustrate verb usage and conjugations. Activities are included to identify verbs in sentences and passages.