The document discusses reported speech, which is used to tell someone else what another person said without using their exact words. It explains that when changing direct speech to reported speech, verb tenses change and words referring to place and time are altered. Conjunctions like "that" or "if" are also used depending on whether it is a statement, question, order, or suggestion. Finally, common reporting verbs are provided that indicate whether the original speech was a statement, question, order, or suggestion.