1. Some phone calls are made by my friends (bị động HTĐ: am/is/are + Vp.p)

2. That report was prepared by Mai yesterday (bị động QKĐ: was/were + Vp.p)

3. A new race may be organized next month (bị động với modal verbs: modal verb + be + Vp.p; they được lược đi trong câu BĐ)

4. The visitors will be shown the new building (bị động TLĐ: will be + Vp.p; people được lược đi trong câu BĐ)

5. Some friends of hers have been asked to join us (bị động HTHT: have/has + been + Vp.p; we được lược đi trong câu BĐ)
6. Rose trees are grown in the garden by mother  (bị động HTĐ; place + by O)

7. A new stadium was being built when we came (bị động QKTD: was/were + being + Vp.p; they được lược đi trong câu BĐ)

`1.` Some phone calls are made by my friends

`2.` That report was repared by Mai yesterday 

`3.` A new race may be organized next month

`4.` The visitors will be showed the new building

`5.` Some friends of her have been asked to join us

`6.` Rose trees are grown in the garden by mother

`7.` A new stadium was being built when we came

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)

Modal verb: S + modal verb (should, must, have to, can,...) + be + PP + (by O)