This document provides an overview of 12 different verb tenses in English, including simple present, past, and future, present, past, and future progressive, present, past, and future perfect, and present and past perfect progressive tenses. For each tense, it gives the basic conjugation pattern and examples of how that tense is used to indicate the timing or duration of an action. The purpose is to teach students the different verb tenses in English and how they are used to show when an action happens, happened, or will happen in time.