This document discusses the passive voice in English. The passive is formed using "be" plus the past participle of the main verb. It focuses on the object of the sentence rather than the subject. The passive voice is often used when the subject or agent performing the action is unknown or unimportant. Additional structures for the passive include "it is said/believed/thought" followed by "that" and a clause or the subject followed by "is said/believed/thought" plus an infinitive.