$1.$ $...$

$→$ I haven't read a book for half an hour.

- S + have/ has + (not) + V3.

$→$ It's half an hour since I last read a book.

- S + tobe + time since S + last + V2.

$2.$ $...$

$→$ An hasn't been interested in healthy eating for 3 years.

- S + have/ has + (not) + V3.

$→$ It is 3 years since An last interested in healthy eating.

- S + tobe + time since S + last + V2.

$3.$ $...$

$→$ I haven't visited Hanoi for two years.

- S + have/ has + (not) + V3.

$→$ It's two years since I last visited Hanoi.

- S + tobe + time since S + last + V2.

$→$ I haven't been to Hanoi for two years.

- for + khoảng thời gian.

$4.$ $...$

$→$ Minh hasn't used this computer since Sunday.

- since + mốc thời gian.

$5.$ $...$

$→$ How long have you moved to this town?

- Have + S + V3?

$→$ How long ago did you start moving to this town?​

- start + V-ing.

$→$ How long did it take you to move to this town?

- How long does it take + O + to V?