Can you clean the floor carefully?" My teacher asked us Do you go to school by bus" Lam asked tuan Clean the floor carefully " my mother asked me

`1.` My teacher asked us if we could clean the floor carefully.

`-` Lùi thì: can `->` could

`2.` Lam asked Tuan if he went to school by bus.

`-` Lùi thì: HTĐ `->` QKĐ

`3.` My mother asked me to clean the floor carefully.

`->` ask sb to do sth: yêu cầu ai làm gì

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`@`Câu tường thuật `-` yes/no question:
S + asked sb + if/whether + S + V (lùi thì)

#lhuongg.

`1.` My teacher asked us if we could clean the floor carefully.

`-` CT ( Câu gián tiếp ) : S1 + asked ( O ) + if / whether + S2 + V ( lùi thì ) + ...

`-` Modal verbs `->` Quá khứ của modal verbs tương ứng.

`2.` Lam asked Tuan if he went to school by bus.

`-` Biến đổi thì : HTD `->` QKD

`-` Biến đổi đại từ nhân xưng : you `->` he

`3.` My mother told me to clean the floor carefully.

`-` Câu mệnh lệnh ( Gián tiếp ) : S + told + O + to / not to + V-inf