The document discusses reported speech, which is used to tell people what others have said or to repeat information that someone didn't hear or understand clearly. Reported speech involves changing verb tenses and pronouns from the original direct speech. For example, "I am fine" would become "He said he was fine." Reported speech is also used to report questions by using verbs like "ask" and keeping interrogative pronouns. Commands and requests can be reported using "tell" or "ask" followed by an infinitive verb. Other reporting verbs like "agree," "advise," and "apologize" can be used to provide more context about why something was said.