The document explains how to form the passive voice in English. It states that the passive voice focuses on the action rather than the person performing the action. It describes how to transform sentences from active to passive voice by making the direct object of the active sentence the subject of the passive sentence and using "to be" plus the past participle of the main verb. Various examples are given of transforming verb tenses such as present simple, past simple, present perfect, and modal verbs into the passive voice.