The document discusses the future simple tense in English. It describes how to form the future simple tense using will or shall with the base verb form. Examples are provided for affirmative, negative, and interrogative sentences. The future simple tense is used to talk about future actions that may or may not happen, make predictions, offers, promises, threats, requests, on the spot decisions, or express fear. Time expressions like tomorrow, next week, or tonight are commonly used with the future simple tense.