Note: Công thức câu bị động nâng cao:

Mệnh đề có hoặc không có that:

Câu gốc: S$_{1}$ + V$_{1}$ + that + S$_{2}$ + V$_{2}$ + O  

Chuyển theo cách $1$: It is V$_{1}$p$_{2}$ that + S$_{2}$ + V$_{2}$ + O

Chuyển theo cách $2$: S$_{2}$ is V$_{1}$ p$_{2}$ + to V$_{2}$/ to have + V$_{2}$ p $_{2}$/ to be V-ing/ to have + been + V$_{2}$-ing          

$1.$ It is rumored that you were the best architect in this city.

You were rumored to have been the best architect in this city. (Câu bị động thì quá khứ đơn: was/ were + $VPII$)

$2.$ It was reported that the flowers were killed by frost.

The flowers were reported to be killed by frost. 

$3.$ It is informed that the director is going to take a business trip to England.

The director is informed to be going to take a business trip to England. (Câu bị động thì hiện tại đơn: is/ am/ are + $VPII$

$4.$ It was announced that the meeting was delayed until next week.

The meeting was announced to be delayed until next week by that officer. 

$5.$ It was discovered that this cotton was grown in Egypt. 

This cotton was discovered to be grown in Egypt by them.