This document provides a lesson on English verb forms and usage. It begins with an overview of verb forms V1, V2, and V3 (irregular verbs). It then discusses five verb formulas using auxiliary verbs like be, have, and do, followed by examples. Later sections focus on the uses of do as a helping verb and modal verbs/semi-modals like can, must, have to. Exercises provide practice identifying and using different verb forms and auxiliary verbs in sentences.