The document provides grammar notes on using different tenses to talk about future events, including will/going to, be + -ing, simple present, present perfect progressive, future, and future perfect. It explains that will and going to are both used to say what will happen, and the difference is not important. Examples are given for using each tense, such as using will/going to be + -ing to describe an action in progress at a future time, and using the future perfect to show an action that will happen before a certain future time.