This document provides information about auxiliary (helping) verbs and how they are used to form verb tenses in English. It discusses the helping verbs "to be", "will", "to have", and "to do" and how they are used to form the present continuous, future simple, present perfect, negatives, and questions. Examples are provided to illustrate the use of these helping verbs in different tenses. The document also briefly mentions the helping verbs "can" and "could".