`1.` It is for years since I last enjoyed myself.

`2.` It is `2` years since I last ate this kind of food.

`3.` It is for hours since Mary last rang.

`4.` It is `4` years since we last saw each other.

`5.` I haven't gone to see them for over a year.

`6.` I haven't played football for more than ten years.

`----------------------`

`-` Cấu trúc bài trên:

`-` S `+` have/has `+` not `+` Ved/C3 `+` for `+` khoảng thời gian

`->`Ai đó/ sự vật gì/ hiện tượng gì đã không … trong khoảng …

`=` It's `+` khoảng thời gian `+` since `+` S `+` last `+` Ved/C2

Công thức đổi HTHT - QKĐ

S + has/have + not + V3/ed + for/since + time 

--> S + last + V2/ed 

--> The last time + S+ V2/ed + was + time 

--> It is / has been + time + since + S+ (last) + V2/ed 

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1. It is years since I last enjoyed myself so much.

2. It is 2 years since I last ate this kind of food.

3. It is hours since Mary last rang.

4. It is 4 years since we last saw him.

5. I haven't gone to see them for over a year.

6. I haven't played football for more than ten years.

`color{orange}{~MiaMB~}`