1. It was very brave of him to rush into the burning house.
-> It tobe adj of sb to Vnt.
2. The earth is said to have been originally part of the sun
-> S tobe said to Vnt/have VPII.
3. He appears to have been killed with a blunt instrument
-> S appear(s/ed) to Vnt/have VPII
4. It was stupid of you to sign the document without reading it
-> It tobe adj of sb to Vnt.
5. Is he going to arrive before six?
-> be going to Vnt
6. He is expected to broadcast a statement tonight
-> S tobe expected to Vnt
7. He forced us to wait for hours
-> force sb to Vnt