1. The document discusses different tenses in English including present, past, future, perfect and continuous tenses.
2. It explains how to form sentences in the affirmative, negative and interrogative for each tense and provides examples to illustrate their uses.
3. Various tenses and their uses are defined, such as using the present tense to describe present or habitual actions, past tense for past events, and future tenses for actions that will occur.