tailieunhanh - The passive - Thể bị động

He delivers letters. Present Simple He delivered the letters. Past Simple He has delivered the Present Perfect Past perfect Present Continuous Past Continuous Future Simple Infinitive He will deliver the Modal + be + past part He has to deliver the letters. letters. He had delivered the letters. He is delivering the letters. He was delivering the letters. | V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V The passive - Thể bị động V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvw Present Simple Past Simple Present Perfect Past perfect Present Continuous Past Continuous Future Simple Infinitive Modal be past part Active voice He delivers letters. He delivered the letters. He has delivered the letters. He had delivered the letters. He is delivering the letters. He was delivering the letters. He will deliver the letters. He has to deliver the Passive Voice Letters are delivered. The letters were delivered. The letters have been delivered. The letters had been delivered. The letters are being delivered. The letters were being delivered. The letters will be delivered. letters. The letters have to be delivered. He must deliver the letters. The letters must be delivered. The Passive is used 1. When the agent the person who does the action is unknown unimportant or obvious from the context. My car was stolen. We don t know who stole it. This church was built in 1815. unimportant agent He has been arrested. obviously by the police 2. To make more polite or formal statements. The car hasn t been cleaned. more polite You haven t cleaned the car. - less polite 3. When the action is more important than the agent as in processes instructions events reports headlines news items and .