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The document discusses the passive voice in English. The passive voice indicates that the action is more important than the subject performing the action. It is formed by using the verb "to be" plus the past participle of the main verb. To change an active sentence to the passive, the object of the active sentence becomes the subject of the passive sentence and the subject of the active sentence is placed after "by" if present. Examples are given demonstrating how to change active sentences into their passive equivalents in different tenses.Read less