The document discusses the future perfect and future continuous tenses in English. The future perfect uses will + have + past participle to refer to actions that will be completed by a certain time in the future. Examples are given like "By four o'clock Friday, we'll have finished all the exams." The future continuous uses will + be + -ing to refer to actions that will be ongoing at a certain time, like "At 8pm tomorrow, I'll be watching a movie." The document provides examples and explanations of how to use both tenses correctly in sentences.