`1` He asked me if I spoke English.

`-` Lùi:

you `->` I

Hiện tại đơn `->` quá khứ đơn

`2` She asked me whether I was British or American.

`-` Lùi:

you `->` I

Hiện tại đơn `->` quá khứ đơn 

`3` She asked me if I had got a computer.

`-` Lùi:

you `->` I

have got `->` had got

`4` He wanted to know if I could type.

`-` Lùi:

you `->` I

can `->` could 

`5` She wanted to know if I had come by train.

`-` Lùi:

you `->` I

Quá khứ đơn -> Quá khứ hoàn thành

`6` He asked me if I had been to Bristol before.

`-` Lùi:

you `->` I

Hiện tại hoàn thành `->` quá khứ hoàn thành

`7` He asked her if she would be at the party.

`-` Lùi:

You -> her

Tương lai đơn `->` would + V

`-----`

`***` Câu tường thuật với if/whether

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

`2` S + wanted to know + if/whether + S + V(lùi thì)

`***` Lưu ý: Dùng "whether" trong câu có "or" diễn tả sự lựa chọn.

Câu tường thuật - dạng Yes/No-questions 

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

--------------------------------------------------------

HTĐ ⇒ QKĐ

HTHT ⇒ QKHT

can ⇒ could 

QKĐ ⇒ QKHT

will ⇒ would 

--------------------------------------------------------

1. He asked me if I spoke English.

2. She asked me if I was British or American.

3. She asked me if I had got a computer.

4. He wanted to know if I could type.

5. She wanted to know if I had come by train.

6. He asked me if I had been to Bristol before.

7. He asked her if she would be at the party.

`color{orange}{~MiaMB~}`