The document discusses causative sentences using the verbs "have" and "get". It explains that causative constructions are used when someone arranges for an action to be done by another person rather than doing it themselves. It provides examples of causative structures like "have something done", "get something done", and "make someone do something". It also discusses using agents like "by" to indicate who performs the action. Overall, the document provides a detailed overview of how to form and use causative sentences in English.