THE PASSIVE (trpnik)

John mends a car. (active)

A car is mended by John. (passive)

PRESENT SIMPLE:

TO BE + PAST PARTICIPLE

John mends a car.

Cars are mended by John.

PRESENT CONTINUOUS:

TO BE + BEEING + PART PARTICIPLE

John is mending a car.

A car is beeing mended by John.

John is mending cars.

Cars are beeing mended by John.

THE AGENT IS LEFT OUT:

1.) When is it unknown

My flat was burgled last night.

2.) When it is not important

This bridge was built in 1886