$\Longrightarrow$1.The mayor are lowering the taxes 

$\Longrightarrow$2.People has played that CD very often.

$\Longrightarrow$3.Hackers will cause chaos to computers.

$\Longrightarrow$Form câu bị động:

+HTĐ: S+am/is/are+ $P_{II}$ +(by+O)

+HTTD: S+am/is/are+being+ $P_{II}$  +(by+O)

+HTHT: S+have/has+been+ $P_{II}$  +(by+O)

+QKĐ: S+was/were+ $P_{II}$  +(by+O)

+QKTD: S+was/were+being+ $P_{II}$  +(by+O)

+TLĐ:S+will+be+ $P_{II}$  +(by+O)

+TLG: S+am/is/are+going to+be+ $P_{II}$  +(by+O) 

+Model verb (M): S+M+be+ $P_{II}$ +(by+O)

Câu chủ động ( Thì HTTD `-` HTHT `-` TLĐ ) :

`-` Thì HTTD : S + is / are / am + V-ing

`-` Thì HTHT : S + have / has + V3 / PII

`-` Thì TLĐ : S + will + V

`1`.The mayor is lowering the taxes

`2`.I have played that CD very often

`3`.Hackers will cause chaos to computers

`\text{@ TheFox}`