The document discusses English tenses, including: - There are 12 tenses total divided into present, past, and future categories. - The present tenses are simple present, present continuous, present perfect, and present perfect continuous. Examples of usage are provided. - The past tenses are simple past, past continuous, past perfect, and past perfect continuous. Examples of irregular verbs are noted. - The future tenses are future simple, future continuous, future perfect, and future perfect continuous. Examples of usage are provided. - Homework questions are provided testing knowledge of the 12 tenses.