The document discusses various uses of future tenses in English. Simple Future tense expresses actions that have not occurred but may happen later. It is used for events in the future that are facts, as well as things outside of one's control. Going to is used for pre-decided future events, while will is used for decisions made on the spot. Future Continuous describes activities that will be in progress at a future time. Future Perfect refers to actions completed by a certain point in the future.