ét o ét..........................

`1.` I have not spoken to her for 5 years

`2.` I have not spoken to my uncle since April

`3.` I have not met her since 2000

`4.` He has not been seen for two weeks

`5.` She has not met her brother  since her wedding

`6.` She has not visited me for ten years

`7.` It has not rained for a week

`------------->`

`-` for + khoảng thời gian

`-` since + mốc thời gian

`-` Cấu trúc thì Hiện tại hoàn thành

`( + )` S + have/ has + V3/-ed + O

`( - )` S + have/ has not + V3/-ed + O

`( ? )` Have/ Has + S + V3/-ed + O?