1. I am given this dish by the waiter
This dish is given me by the waiter
2. We were sent these postcards by our friends
These postcards were sent to us by our friends
3. The customer was handed these boxes by the shop assistant
These boxes were handed to the customer by the shop assistant
4. Ann has been given some bananas and some flowers already
Some bananas and some flowers have been given already
5. The visitors are being brought some cups of tea in the next room by her
Some cups of tea are being brought to the visitors in the next room by her
6. The airline agent was showed/ shown his ticket by Peter
His ticket was showed/ shown to the airline agent by Peter
QKĐ: S + was/ were + PP + (by O)
QKTD: S + was/ were + being + PP + (by O)
QKHT: S + had + been + PP + (by O)
HTĐ: S + am/ is/ are + PP + (by O)
HTTD: S + am/ is/ are + being + PP + (by O)
HTHT: S + have/ has + been + PP+ (by O)
TLĐ: S + will be + PP + (by O)
TLG: S + is/ am/ are + going to + be + PP + (by O)
S + modal verb (should, must, have to, can,...) + be + PP + (by O)