`1.`Many doctor say that teenagers undergo many physical and mental changes during their puberty.

`2.`Sometimes my mother tells me that I don’t have to be so tense.

`3.`Peter said he was looking forward to his grandfather’s gift.

`4.`Peter said if he pass this test, his father would buy him a new skateboard.

`5.`I told my teacher that I had forgotten to do my homework.

`6.`Jim said Mr. Brown owned two cars and three houses.

`7.`She said to me that she couldn’t do it by herself.

`8.`My mother said she would go on a business trip the following week.

`9.`My manager said that someone had broken into our office the previous day.

`10.`He told me I might have trouble if I didn’t do my homework.

`11.`The singer said she started her career three years before.

`12.`Jim told me it was not his book, it was mine.

`13.`Ann said to me that she has just received a postcard from her foreign friend.

`14.`He said that story had happened long before.

`15.`Peter said he hoped it would be sunny the following day.

`⇒`Cấu trúc :

S + said/said to sb that/told sb that + Clause

- Lùi thì :

Hiện tại đơn `⇒`Quá khứ đơn

Quá khứ đơn `⇒`Quá khứ hoàn thành tiếp diễn

Quá khứ hoàn thành`⇒`Quá khứ hoàn thành

Tương lai đơn `⇒`Tương lai trong quá khứ

am/is/are + going to V `⇒`was/ were going to V

will `⇒`would

Shall/ Can / May `⇒`Should / Could/ Might

Should / Could/ Might/ Would/ Must `⇒`Giữ nguyên

- Đổi đại từ nhân xưng, tính từ sở hữu và đại từ sở hữu

I `⇒`She/ he

We `⇒`They

You `⇒`I, he, she/ they

Us `⇒`Them

Our `⇒`Their

Myself `⇒`Himself / herself

Yourself `⇒`Himself / herself / myself

Ourselves `⇒`Themselves

My `⇒`His/ Her

Me `⇒`Him/ Her

Your `⇒`His, her, my / Their

Our `⇒`Their

Mine `⇒`His/ hers

Yours `⇒`His, her, mine/ Theirs

Us `⇒`Them

Our `⇒`Their

- Thời gian, nơi chốn :

Here `⇒`There

Now `⇒`Then

Today `⇒`That day

Yesterday `⇒`The previous day, the day before

Tomorrow `⇒`The following day, the next day

Ago `⇒`Before

Last week `⇒`The previous week, the week before

Next week `⇒`The following week, the next week

This `⇒`That

These `⇒`Those

 1. Many doctors say that teenagers undergo many physical and mental changes during their puberty.

2. Sometimes my mother tells me that I don't have to be so tense.

3. Peter said that he was looking forward to his grandfather's gift.

4. Peter said that if he passed that test, his father would buy him a new skateboard.

5. I told my teacher that I had forgotten to do my homework.

6. Jim said that Mr. Brown owned two cars and three houses.

7. She said to me that she couldn't do it by himself.

8. My mother said that she would go on a business trip the following week.

9. My manager said that someone had broken into our office the day before.

10. He told me that I might have trouble if I didn't do my homework.

11. The singer said that he had started his career three years before.

12. Jim told me that it was not his book, it was mine

13. Ann said to me that she had just received a postcard from her foreign friend.

14. He said that story had happened long before.

15. Peter said that he hoped it would be sunny the following day.

Câu gián tiếp + Động từ says/tells -> không lùi thì + Said/told/asked -> lùi thì

Lùi thì trong câu tường thuật :

HTĐ -> QKĐ

HTTD -> QKTD

QKĐ -> QKHT

HTHT -> QKHT

Will -> Would

Can -> Could

May -> Might

Dạng Wh -questions : asked sb + từ để hỏi + S V (lùi thì) Dạng Yes/No questions : asked sb if S V (lùi thì)