It Is Said That / He Is Said To
(be) Supposed To

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“Main clause + noun clause” can be made passive in two ways.

Example 1:

Active: People say that he lives abroad now.
Passive 1: It’s said that he lives abroad now.
Passive 2: He is said to live abroad now.

Also See: 

Passive Voice

Example 2:

Active: People believe that he is the hero of the town.
Passive 1: It’s believed that he is the hero of the town.
Passive 2: He is believed to be the hero of the town.

Present "Be":

Active: They say (that) the man is a thief.
Passive 1: It’s said that the man is a thief.
Passive 2: The man is said to be a thief.

Simple Present Noun Clause:

Active: We understand that he dislikes children.
Passive 1: It’s understood that he dislikes children.
Passive 2: He is understood to dislike children.

Past "Be":

Active: They say that he was very rich in the past.
Passive 1: It’s said that he was rich in the past.
Passive 2: He is said to have been very rich in the past.

Simple Past Noun Clause :

Active: People claim that he left the country two months ago.
Passive 1: It’s claimed that he left the country two months ago.
Passive 2: He is claimed to have left the country two months ago.

Present Perfect Noun Clause :

Active: People think that he has deserted his family.
Passive 1: It’s thought that he has deserted his family.
Passive 2: He is thought to have deserted his family.

Present Continuous Noun Clause :

Active: We think he is waiting there now.
Passive 1: It’s thought that he is waiting there now.
Passive 2: He is thought to be waiting there now.

Past Continuous Noun Clause :

Active: People say he was working very hard.
Passive 1: It’s said that he was working very hard.
Passive 2: He is said to have been working very hard.

Future Tense(will or going to) Noun Clause :

Active: People expect that the rate of exchange will go down soon.
Passive 1: It’s expected that the rate of crime will go down soon.
Passive 2: The rate of crime is expected to go down soon.

Present Passive Noun Clause :

Active: They say that a lot of electrical appliances are stolen every day.
Passive 1: It’s said that a lot of electrical appliances are stolen every day.
Passive 2: A lot of electrical appliances are said to be stolen every day.

Past Passive Noun Clause :

Active: They report that two people were killed in the explosion.
Passive 1: It’s reported that two people were killed in the explosion.
Passive 2: Two people are reported to have been killed in the explosion.