`color{lightblue}{\text{<ChipChuChoe>}}`

`***` Câu bị động Thì HTĐ : 

`(+)`  S `+` am/is/are `+` Vp2 `+` (by O).

`(-)`  S `+` am/is/are `+` not `+` Vp2 `+` (by O).

`(?)`    Am/is/are `+` S `+` Vp2 `+` (by O)? 

`#Yaii `

`@ ` Thì HTĐ với câu chủ động`: `

`(+) ` S`+ `V`/ `V(s,es)`+ `O

`(-) ` S`+ `don't`/ `doens't`+ `V`+ `O?

`(?) ` Do`/ `Does`+ `S`+ `V`+ `O?

`@ ` Thì HTĐ với câu bị động`: `
`(+) ` S`+ `tobe`+ `V`3+( `by O`) `

`(-) ` S`+ `tobe`+ `V`3+( `by O `) `

`(?) ` Tobe`+ `S`+ `V`3+( `by O`)? `

Eg`: ` Câu chủ động`: ` She always takes care of the plants every day.

`(+) ` The plants are taken care of `( `by her`) ` every day.

`(-) ` The plants arern't taken care of `( `by her`) ` every day.

`(?) ` Are the plants taken care of `( `by her`) ` everyday?