`1.` This film has been seen by Tom before.
`2.` The newspaper has been read by Nina already.
`3.` These movies have been seen by them yet.
`4.` The contract has been signed by me.
`5.` The tickets have been bought by these men.
- Bị động thì HTHT
- S + have/has + been + VpII + (by + O) + time