Change it into passive voice: Somebody is knocking at the door. Share with your friends Share 1 Saniya Mehta answered this the door is being knocked. hope it helps!! -2 View Full Answer Somya Goel answered this the door is being knocked by somebody 2 Atul Krishna answered this The door is being knocked. May it help you Prathum. -1 Riddhi Golchha answered this the door is being knocked by someone 1 Meritnation Student answered this The door is being knocked at. 0 Devansh Jain answered this THE DOOR IS BEING KNOCKED BY SOMEONE -1