Chuyển đổi câu từ quá khứ đơn qua hiện tại hoàn thành và ngược lại 1.I started learning English 5 years ago. =>I have _____________________________ 2.His father started to smoke in 1999. =>His father has ______________________ 3. We started learning English 5 years ago. => We have __________________________ 4. They began to live here in 2008. => They have ______________ ____________________ 5. She has worked in this company since 2006. => She began _________________________. 6. My father has retired for 5 years. => My gather started ___________________. 7.We have built this house since last Summer. => We began ________________________. 8.How long have you played soccer? =>When did _______________________ ? 9. How long have you live here? => When did you ………………………? 10. When did you begin waiting for me? => How long __________________________?

`1.`I have learnt English for 5 years.

`2.`His father has smoked since 1999.

`3.`We have learnt English for 5 years.

`4.`They have lived here since 2008.

`5.`She began working in this company in 2006.

`6.`My father started retiring 5 years ago.

`7.`We began building this house last Summer.

`8.`When did you play soccer ?

`9.`When did you live here ?

`10.`How long have you waited for me ?

`@`Form :

`a)` S + started/ began + Ving/to V + time

`=`S + have/has + Vpp + since/for + time

`b)` When + did + S + V bare ?

`=`How long + have/has + S + Vpp ?

1.I started learning English 5 years ago.

⇒ I have  learnt English for 5 years.

2.His father started to smoke in 1999.

⇒ His father has smoked since 1999.

3. We started learning English 5 years ago.

⇒ We have learnt English for 5 years.

4. They began to live here in 2008.

⇒ They have lived here since 2008

5. She has worked in this company since 2006.

⇒ She began working in this company in 2006

6. My father has retired for 5 years.

⇒ My father started retiring 5 years ago

7.We have built this house since last Summer.

⇒ We began building this house last Summer.

8. How long have you played soccer?

⇒ When did you play soccer? 

9. How long have you live here?

⇒ When did you live here?

10. When did you begin waiting for me?

⇒ How long have you waited for me?

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