1. Nga is cooking dinner now while we are reading books.

DHNB: now (HTTD)

S + am/is/are+  Ving 

HTTD + while + HTTD: hành động xảy ra song song cùng lúc 

2. Nam told me that he would be away in two days.

S + told + O + (that) + S + V (lùi thì)

will ⇒ would 

in + time (thì TLD)

3. Study hard or you will fail the exam.

S + will + V1: thì TLĐ

4. When we met Hoa yesterday, she was riding Nam by bike.

When + QKĐ, QKTD

QKĐ: S + V2/ed 

QKTD: S + was/were + Ving 

Hành động diễn ra thì có hành động cắt ngang 

by + phương tiện 

5. My friends came when I was watching TV yesterday.

QKĐ + when + QKTD

QKĐ: S + V2/ed 

QKTD: S + was/were + Ving 

Hành động diễn ra thì có hành động cắt ngang 

6. If they study hard, they won't fail the exam.

If 1: if + HTĐ, S + will/can/shall ... + V1 

7. Tuan told me that he was seeing me that night.

S + told + O + (that) + S + V (lùi thì)

DHNB: tonight (HTTD)

HTTD ⇒ QKTD

tonight ⇒ that night 

8. Hoa asked me what I was doing then.

S + asked + O + WH + S+ V (lùi thì)

DHNB: now (HTTD)

HTTD ⇒ QKTD

now ⇒ then 

9. Lan asked us if we were good at speaking English.

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

HTĐ ⇒ QKĐ

be good at + Ving / N : giỏi 

10. If you come now, you will see us.

If 1: if + HTĐ, S + will/can/shall ... + V1 

11. If Nam is fine now, he will help you.

If 1: if + HTĐ, S + will/can/shall ... + V1 

12. Tuan will come here if he isn't busy tomorrow.

If 1: if + HTĐ, S + will/can/shall ... + V1 

13. As soon as Nam comes here tomorrow, he will see us.

As soon as + HTĐ, TLĐ: ngay khi 

HTĐ: S + V1/s/es

TLĐ: S + will + V1 

14. Before going out yesterday, I closed all the doors.

Before + Ving: trước khi làm gì 

DHNB: yesterday (QKD)

S + V2/ed 

15. Nam is too young to drive a car.

S + be +too + ADJ + (for O) +to V: quá... đến nỗi không 

`color{orange}{~MiaMB~}`

`1.` Nga is cooking dinner now while we reading books.

`-` Clause + while + clause : trong khi làm gì thì , ai làm gì.

`-` Hiện tại tiếp diễn : S + am / is / are + V`-`ing .

`->` Bây giờ Nga đang nấu bữa tối trong khi chúng tôi đọc sách.

`2.` Nam told that he would be away two days.

`-` Câu tường thuật `-` Câu kể : S + told + O + ( that ) + S + V ( lùi thì ) + O.

`->` Nam nói rằng anh ấy sẽ đi vắng hai ngày.

`3.` Study hard or you will fail the exam.

`-` Study hard : học chăm chỉ.

`-` Clause or clause : hoặc .

`-` TLĐ : S + will + V`-`infi.

`4.`  When we met Hoa yesterday, she was riding Nam by bike.

`5.` My friends came when I was watching TV yesterday.

`-` When + S + Ved / V2 , S + was / were + V`-`ing : diễn tả khi hành động nào đang xảy ra thì hành động khác xen vào trong quá khứ.

`->` Hành động QKĐ chen vào.

`6.` If they study hard, they won't fail the exam.

`-` Câu điều kiện loại `1` : If + S + V ( s / es ), S + will + V`-`infi.

`->` Diễn tả câu điều kiện có thật ở hiện tại.

`7.` Tuan told me that he was seeing me that night.

`-` Câu tường thuật `-` Câu kể : S + told + O + ( that ) + S + V ( lùi thì ) + O.

`-` Lùi thì : HTTD `->` QKTD.

`8.` Hoa asked me what I was doing then.

`-` Câu tường thuật `-` Câu hỏi wh : S + asked + wh + S + V ( lùi thì ) + O.

`-` Lùi thì : HTTD `->` QKTD.

`9.` Lan asked us if we were good at speaking English.

`-` Câu tường thuật `-` Yes / No question : S + asked + if / wether + S + V ( lùi thì ) + O.

`10.` If you come now, you will see us.

`11.` If Nam is fine now, he will help you.

`12.` Tuan will come here if he isn't busy tomorrow.

`-` Câu điều kiện loại `1` : If + S + V ( s / es ), S + will + V`-`infi.

`->` Diễn tả câu điều kiện có thật ở hiện tại.

`13.` As soon as Nam comes here tomorrow, he will see us.

`-` As soon as + S + V ( s / es ), S + will + V`-`infi : ngay khi ...

`14.` Before going out yesterday, I closed all the doors.

`-` Before + V`-`ing, clause : trước khi làm gì, thì làm gì.

`15.` Nam is too young to drive a car.

`-` S + be + too + adj + to + V`-`infi : quá ... đến nỗi ..