Examples of using "постучали" in a sentence and their english translations:
Somebody knocked at the door.
Someone knocked on Tom's door.
There was a gentle knock on the door.
There is a faint knocking at the door.
There was a knock on the door.
Someone knocked on the door.
She had hardly begun to read the book before someone knocked at the door.
They knocked on the door and said they had come to arrest him.