This document discusses the structures and uses of "will" and "going to" when talking about the future in English. It explains that "will" has the structure of subject + "will" + base verb, while "going to" uses subject + "be" + "going to" + base verb. It provides examples of how each can be used to make predictions, plans, promises, and more. The document also discusses the relationship between these structures and the present continuous tense, and how to use them in positive, negative, and interrogative sentences.