`1` I haven't cooked for 3 years 

`=>` The last time + S + Ved/V2 + was + time

`=>` S + has/have + not + Ved/V3 + for/since + time 

`2` How long have you bought that bag ? 

Hoặc : How long ago did you buy that bag ? 

`=>` How long + has/have + S + Ved/V3 + O ? 

`=>` How long ago + did + S + V nguyên + O ? 

`=>` Did + S + V nguyên + O ? 

`3` I haven't seen him for 2 days 

`=>` S + last + Ved/V2 + O 

`=>` S + has/have + not + Ved/V3 + for/since + time

`4` I has written blog for 2 months 

`=>` S + started/began + to V/V-ing + time

`=>` S + has/have + Ved/V3 + for/since +time

`5` She has lived in Danang since she was a child 

`=>` S + started/began + to V/V-ing + time

`=>` S + has/have + Ved/V3 + O 

`6` I haven't visited my grandparent for 5 years 

`=>` It's + time + since + S + (last) + Ved/V2 + O 

`=>` S + has/have + not + Ved/V3 + O 

`7` How long have you started loving him ? 

Hoặc : How long ago did you start loving him ?

`=>` How long ago + did + S + V nguyên + O ? 

`=>` How long + has/have + S + Ved/V3 + O ? 

`=>` Did + S + V nguyên + O ? 

`8` I haven't gone to bar for 6 years 

`=>` The last time + S + Ved/V2 + O + was + time

`=>` S + has/have + not + Ved/V3 + for/since + time

`9` She hasn't written to me for years

`=>` S + has/have + not + Ved/V3 + O 

`=>` It's + time + since + S + (last) + Ved/V2 

`10` I haven't taken a bath for 2 days 

`=>` S + last + Ved/V2 + O 

`=>` S + hasn't/haven't + Vpp + O 

`@` Note : 

`-` for + khoảng thời gian 

`-` since + mốc thời gian