1. The environment was being discussed.
2. The guitar was being played by him.
3. English was being taught at that school by her.
4. Their bikes were being repaired.
5. Dinner wasn't being eaten.
6. The gate wasn't being painted.
7. Him wasn't being driven home.
8. The dogs weren't being fed by him.
9. Were these lines being read by her?
10. Were bags being carried?
Bị động thì quá khứ tiếp diễn:
(+) S+was/were+being+Vpp (by+O)
( - ) S+was/were not+being+Vpp (by+O)
( ? ) Was/Were+S+being+Vpp (by+O)?