`1.` He told them to open the door

S + told/ asked + O + to + V_inf

`2.` He asked her where she was going

S + asked + (O) + question word + S + V_lùi thì

Hiện tại tiếp diễn `→` Quá khứ tiếp diễn

`3.` He asked which way they had gone

S + asked + (O) + question word + S + V_lùi thì

Quá khứ đơn `→` Quá khứ hoàn thành

`4.` I told her to bring it back if it didn't fit

S + told/ asked + O + to + V_inf

Vế sau lùi thì: Hiện tại đơn `→` Quá khứ đơn

`1.` He told them to open the door.

`2.` He asked her where she was going. 

`-` Thì HTTD `->` QKTD

`3.` He asked which way they had gone.

`-` QKD `->` QKHT

`4.` I told her to bring it back if it didn't fit. 

`-` Form: S + told + Object + to V-inf + ...

`-` Form: S + asked + (O) + Wh-questions + S + V lùi thì