This document discusses reported speech and how to use it properly. It explains that reported speech is used to talk about other people's words, either at the time they spoke or in the past. It provides rules for changing verb tenses, pronouns, and adverbs when using reported speech for statements, questions, and commands. Specifically, statements are introduced with "that"; yes/no questions with "if"; WH- questions with the WH- word; and commands/requests with "to" or "not to".