The document discusses the passive voice in English. It begins by explaining the formation of the passive voice using different tenses of the verb "to be" followed by the past participle. It then provides examples. It discusses the uses of the passive voice, including how the object of an active sentence becomes the subject of a passive sentence. It notes that the passive voice is often used without the agent if the agent is not important or obvious. It concludes by noting some uses of present simple and present continuous passive forms.