People thought that the cover was made of iron. Make it passive

[abo.omar]

People thought that the cover was made of iron. Make it passive
1-The cover was thought to be made of iron.
or
2- The cover was thought to have been made of iron.

 

[5jj]

People thought that the cover was made of iron.
The cover was thought to be made of iron.


People thought that the cover had been made of iron.
The cover was thought to have been made of iron.

 

[abo.omar]

People thought that the cover was made of iron. Make it passive
Is there a rule to choose the tense after that?or
When to choose to + inf or to + have p.p?

 

[emsr2d2]

Where did you find the original question?

 

[abo.omar]

 

[abo.omar]

and here

Rewrite the sentence: People thought that the cover was made of iron. => The cover …………………………………………………………… - Aser Aser

hoc247.net

 

[emsr2d2]

and here

Rewrite the sentence: People thought that the cover was made of iron. => The cover …………………………………………………………… - Aser Aser

hoc247.net

Thank you. Remember to quote the source and provide the link in post #1 every time.