ACTIVE VOICE PASSIVE VOICE
Present Simple: He delivers the letters.
The letters are delivered. Past Simple: He delivered the letters. The letters were delivered
Future Simple:He will deliver the letters. The letter will be delivered. Present Continuous:He is delivering the letters. The letters are being delivered. Past Continuous:He was delivering the letters. The letters were being delivered Going to: He is going to deliver the letters.The letters are going to be delivered.Present Perfect: He has delivered the letters.The letters have been delivered.Past Perfect: He had delivered the letters.The letter had been delivered. Infinitive: He has to deliver the letters.The letter have to be delivered.Modals: He must deliver the letters.The letters must be delivered