Present simple

Mary opens the door. The door is opened by Mary.

Chris paints a portrait. A portrait is painted by Chris.

Present Continous.

Mary is opening the door. The door is being opened by Mary.

Present Perfect

Mary has opened the door. The door has been opened.

Past simple.

Mary opened the door. The door was opened by Mary.

Past Continous.

Mary was opening the door. The door was being opened.

Past Perfect.

Mary had opened the door. The door had been opened.

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