`1.` Their house will be painted  their house by the Greens for Christmas Day

`=>` Câu bị động thì Tương lai đơn

`=>` Cấu trúc: S + will be + V3/-ed + by + O

`2.` There are being written an essay by Ann at the moment

`=>` at the moment là `DHNB` thì hiện tại tiếp diễn

`=>` Câu bị động thì hiện tại tiếp diễn

`=>` Cấu trúc: S + am/is/are + being + V3/-ed + by + O

1. The Greens are going to paint this house and these cars for Christmas Day.
           S               V                                         O                                  M
=> This house and these cars are going to be painted for Christmas Day by the Greens

2. Ann had fed the cats before she went to the cinema.

     S        V            O                           M

=> The cats had been fed by Ann before she went to the cinema.