`-` Câu tường thuật :

`+` S + said + that + S + V ( lùi thì )

`+` S + said to / told + O + that + S + V ( lùi thì )

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

`-` S + suggested + V-ing : Gợi ý / Đề nghị

`-` TLTD `->` TLQKTD : S + would be + V-ing

`-` Can `->` Could 

`11`.They said that the plane would be leaving in thirty-five minutes

`12`.Mark suggested going to the Science and Technology Fair

`13`.Tim asked his sister if she could help him with this tricky Math question

`\text{# Kirigiri}`

11. They said that the plane would be leaving in thirty-five minutes.

→ Câu trường thuật: S + said (that) + S + V(lùi thì)

     Qúa khứ của "will" là "would"

12. Mark suggested going to the Science and Technology Fair.

→ What/How about + Ving = S + suggest + Ving

13. Tim asked his sister if she could help him with that tricky math question.

→ Câu trường thuật dạng "Yes/No" : S + asked + O + if/whether + S + V(lùi thì)

    his sister = she / Tim = he

    Quá khứ của "can" là "could"

    Đổi "this" -> "that"