`-` Before + S + Ved / V2 , S + had + VpII

`-` After + S + had + VpII , S + Ved / V2

`=>` Dùng để diễn tả hành động xảy ra trước trước khi có hành động tiếp theo xảy ra

`3`.

`-` After she had sold the house , she sold her children

`-` Before she sold her children , she had sold the house

`4`.

`-` After I had done my homework , I did my homework

`-` Before I did my homework , I had done my homework

`5`.

`-` After Ba had written to me , he wrote to Maryam

`-` Before Ba wrote to Maryam , he had written to me

`\text{# TF}`

$#Hy$

Công thức: 

`+` AFTER: Diễn tả hành động xảy ra xong trước khi có hành động khác tới. 

After + S + had + V_pp, S + V(quá khứ đơn)

`+` BEFORE : Diễn tả hành động xảy ra xong trước khi có hành động khác tới. 

Before + S + V(quá khứ đơn) , S + had + V_pp

`#` Bài làm: 

`(3)`

`=>` After she had sold the house , she sold her children

`=>` Before she sold her children , she had sold the house

`(4)` 

`=>` After I had done my homework , I did my homework

`=>`  Before I did my homework , I had done my homework

`(5)`

`=>` After Ba had written to me , he wrote to Maryam

`=>` Before Ba wrote to Maryam , he had written to me