Các 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 

-----------------------------------------------

1. We haven't seen Tom since we moved to Bristol.

2. She hasn't written to me for nearly 2 years.

3. This film hasn't been shown on TV for 10 years.

color{orange}{~STMIN~}