`1.` He is believed to be a good present

`->` Bị động khách quan

`=>` S + is + believed/said/... + to V/to have VpII + O

`+` to V nếu không lệch thì giữa phần believed/said/... và V

`+` to have VpII nếu lệch thì giữa phần believed/said/... và V

`2.` The furniture wasn't cheap enough for me to buy

`->` S + be + so + adj + that + S + V

`=` S + be + adj + enough + (for sb) + to V

#wheijx.

`1.` He is believed to be a good president.

`-` Bị động hiện tại đơn ; S + am/is/are + Vpp + ... + (by+O)

`2.` The furniture was too expensive for me to buy.

`-` S + tobe + so + adj + that + S + V

`-` S + tobe + too + adj + (for sb) + to + V-inf + ...