`1` Would you mind if  I turned on the TV

`-` would you mind if +S + V2/ed .......... : bn có thấy phiền khi ai đó làm gì 

`2` Recycled plastic is used to make toys and utensils.

`-` câu bị động thì HTĐ : do chủ từ là vật và câu gốc ở thì HTĐ

`-` Form : S+is/am/are+ V3/ed +(by+O)........

`3` I haven't played tennis since 1990.

`-` The last time +S+V2/ed +was + time 

`=` S+has/have + not +V3/ed+since/for +time

`4` The tourist asked if Phong Nha was the most beautiful cave in Viet Nam.

`-` cấu trúc câu tường thuật dạng câu hỏi yes/no :

S+asked+(O)/ wondered +if/whether +S+V(lùi thì )

`-` HTĐ `->` QKĐ

$#Minh from NFL$

`1`.Would you mind if I turned on the TV ?

`\rightarrow` Would you mind + if + S + Ved / V2 ? : Bạn có phiền ?

`2`.Recycled plastic are used to make toys and utensils

`\rightarrow` BĐ `-` Thì HTĐ : S + is / am / are + V3 / PII ( by O )

`3`.I haven't played tennis since 1990

`\rightarrow` Thì HTHT ( CPĐ ) : S + haven't / hasn't + V3 / PII

`\rightarrow` Đặc điểm nhận dạng : since

`4`.The tourist asked if Phong Nha was the most beautiful cave in Viet Nam

`\rightarrow` Câu tường thuật NV ( Yes / No ) : S + asked + O + if / whether + S + V ( lùi thì )

`\rightarrow` HTĐ `->` QKĐ ( ĐT Tobe ) : S + was / were + adj / n

`\text{# Kirigiri}`