III. Present progressive: S + is/am/are being PP.
1. She is being helped with the housework.
2. That film is being remade.
3. Is a new barn being built by the farmer?
4. The dinner is being prepared in the kitchen by her mother.
IV. Past progressive: S + was/were being PP.
1. Books were being read by me at 7 o'clock yesterday morning.
2. Was the television being broken at 9 o'clock last night?
3. A song was being sung by Nina when you came.
4. He was being called on the way to Noi Bai airport by Hoe.