`-` Bị động với chủ ngữ giả : It + tobe + ĐT thông báo + that + S + V

`-` Bị động với ĐT thông báo : S + tobe + ĐT thông báo + to + V-inf 

`18.` It was thought that she left without saying anything.

She was thought to have left without saying anything.

`19.` It is said that 13 is an unlucky number.

13 is said to be an unlucky number.

`20.` It was thought that he was arrested by the police.

He was thought to have been arrested by the police.

`-` Bị động QKD : S + was/were + Vpp + ... + (by+O)

`-` Bị động HTHT : S + have/has + been + Vpp + ... + (by+O)

`21.` It is said that he has donated most of his money to the charity.

He is said to donate most of his money to the charity.

`22.` It was said that the children had great time together.

`-` Bị động với động từ thông báo:

S `+` be `+` said/told/believed/v.v `+` to `+` V (`+` by `+` O)

`-` Bị động với chủ ngữ giả 'It':

It `+` be `+` said/told/believed/v.v `+` to `+` V (`+` by `+` O)

`-` Đại từ bất định hoặc 'they' thì ta không dùng với 'by `+` O'

`----------`

`18.`

`-` It was thought that she left without saying anything.

`-` She was thought to leave without saying anything.

`19. `

`-` It is said that 13 is an unlucky number.

`-` 13 is said to be an unlucky number.

`20. `

`-` It was thought that he was arrested by the police.

`-` He was thought to have been/be arrested by the police.

`21. `

`-` It is said that he has donated most of his money to the charity.

`-` He is thought to have donated most of his money to the charity.

`22. `

`-` It was said that the children had great time together.

`-` The children was said to have great time together.