`1.` I have had this computer for three years.

`2.` They have lived Da Lat since last year.

`3.` She has been happy since she had the mobile phone.

`4.` We have learned French for a month.

`5.` She has worked in this school since 2012.

`6.` I have used computers for 5 years.

`7.` The washing machine has stopped working since this morning.

`8.` They have known her for a long time.

`9.` He has read this novel since 9 o'clock.

`->` Cấu trúc thì Hiện tại hoàn thành:

`+` với động từ thường:

`(+)` S + have/has + Ved/V3

`(-)` S + haven't/hasn't + Ved/V3

`(?)` Have/Has + S + Ved/V3?

`+` Chủ ngữ: I/ we/ you/ they/ N(Số nhiều) `->` dùng "have"

`+` Chủ ngữ: It/ she/ he/ N(Số ít) `->` dùng "has"

`+` Since dùng với mốc thời gian

`+` For dùng với khoảng thời gian

Cấu trúc thì hiện tại hoàn thành : 

` ( + ) ` : S + have / has + V3 

` ( - ) ` : S + have / has + not + V3 

` ( ? ) ` : Have / Has + S + V3 ? 

+ Since + ` 1 ` mốc thời gian ( ` 1999 ` , last year , ... ) / mệnh đề chia thì quá khứ đơn 

+ For + ` 1 ` khoảng thời gian ( VD : ` 3 ` years , ` 2 ` months , ... ) 

` 1 . ` I have had this computer for three years 

` 2 . ` They have lived in Da Lat since last year 

` 3 . ` She has been happy since she had the mobile phone 

` 4 . ` We have learnt French for a month 

` 5 . ` She has worked in this school since ` 2012 ` 

` 6 . ` I have used computer for ` 5 ` years 

` 7 . ` The washing machine has stopped working since this morning 

` 8 . ` They have known her for a long time 

` 9 . ` He has read this novel since ` 9 ` o'clock