1) The document discusses various English tenses used to talk about the future, including will, be going to, present continuous, present simple, future continuous, future progressive, and future perfect.
2) It provides examples of how each tense is used, such as using will to express intentions or predictions, be going to for plans or predictions based on evidence, and present continuous for arranged future events.
3) The key difference between future continuous and future perfect is explained, with future continuous expressing an action ongoing at a specific future time and future perfect expressing an action completed before another future time or event.