This document defines verbs and discusses their different types and functions. Verbs express actions or states of being and are essential parts of sentences. Verbs can be classified as transitive, intransitive, or non-action verbs. Non-action verbs refer to physical characteristics or conditions and include being verbs and linking verbs. Being verbs indicate present or past states of being. Linking verbs connect subjects to complementary information. The document also discusses auxiliary verbs, which support and provide meaning to main verbs, expressing abilities, possibilities, permissions, advice, and necessities.