1. We haven't eaten at the same table for 20 years.

- It + to be + time + since + S + last + Ved/ V2.

= S + have/has + not + Vpp + for + time.

+, have not = haven't

+, has not = hasn't

- eat - ate - eaten: ăn

2. She hasn't watched a love story for two months. (Tương tự câu 1)

3. Nancy has taught history when she left her college.

- S + started/ began + to V/ V-ing + O + when + S + Ved/ V2.

= S + have/has + Vpp + O + when + S + Ved/ V2.

- teach - taught - taught: dạy

4. Our friend hasn't organized an English club for seven days.

- S + last + Ved/ V2 + O + time + ago

= S + have/has + not + Vpp + O + for + time.

5. He hasn't gone to a wedding party for six months.

- The last time + S + Ved/ V2 + O + to be + time + ago.

= S + have/has + not + Vpp + O + for + time.

- go - went - gone: đi

*Kiến thức: Quá khứ đơn -> Hiện tại hoàn thành

`1`.The last time we ate at the same table was 20 years ago

`\rightarrow` The last time + S + Ved / V2 + was + time : Lần cuối làm gì

`2`.She hasn't watched a love story for two months

`\rightarrow` Thì HTHT ( CPĐ ) : S + haven't / hasn't + V3 / PII

`\rightarrow` Đặc điểm nhận dạng : for

`3`.Nancy has taught history since she left her college

`\rightarrow` Thì HTHT : S + have / has + V3 / PII

`\rightarrow` Đặc điểm nhận dạng : since

`4`.Our friend hasn't organized an English club for seven days

`\rightarrow` Thì HTHT ( CPĐ ) : S + haven't / hasn't + V3 / PII ( `4 , 5` )

`\rightarrow` Đặc điểm nhận dạng : for ( `4 , 5` )

`5`.He hasn't gone to a wedding party for six months

`\text{@ TheFox}`