`2` All these new words must be learnt

`=>` Bị động must

`(+)` S + must + be  +Vpp + ......

`3` Our papers will be marked after she has collected them.

`=>` Bị động tương lai đơn

`(+)` S + will + be + Vpp + ......

`4` The baby's eyes have been checked by the doctors.

`=>` Bị động hiện tại hoàn thành

`(+)` S + have / has + been  +Vpp + .....

`5` English is spoken all over the world

`=>` Bị động hiện tại đơn

`(+)` S + to be + Vpp + ....

`6` A new bicycle was bought for me on 15th birthday.

`=>` BỊ động quá khứ đơn

`(+)` S + was / were + VPp + ....

`2.` All these new words must be learned by her.

`-` Bị động với must

`-` Form: S + must + be + VpII + (by + O)

`3.` Our papers will be marked by the teacher after she has collected them.

`-` Bị động thì TLD

`-` Form: S + will + be + VpII + (by + O)

`4.` The baby's eyes have been checked by the doctors.

`-` Bị động thì HTHT

`-` Form: S +have/has + VpII + (by + O)

`5.` English is spoken all over the world.

`-` Bị động thì HTD

`-`Form: S + am/is/are + VpII + (by + O)

`6.` A new bicycles was bought for me by my mother on 15th birthday,

`-` Bị động thì QKD

`-` Form: S + was/were + VpII + (by + O) + time