Passive Voice

1. Passive voice is used when the focus is on the action. It is not important or not known, however, who or what is performing the action. Example: "A letter was written." The focus, here, is on the fact that a letter was written. We don't know, however, who wrote it.
2. Sometimes a statement in passive is more polite than active voice, as the following example shows: Example: A vase was broken. Focus, here, is on the fact that a vase was broken, but we don't blame anyone. Compare this to: "You broke the vase."

When rewriting active sentences in passive voice, note the following:

• The object of the active sentence becomes the subject of the passive sentence.
• The form of the verb is the appropriate form of to be (the tense of the active voice main verb) + the past participle.
• The subject of the active sentence becomes the object of the passive sentence (or is dropped.)