My school last won the first prize of the English speaking contest in 2006 –>My school has not………………………………………………………………………………
My school last won the first prize of the English speaking contest in 2006 –>My school has not………………………………………………………………………………
-> My school has not won the first prize of the English speaking contest since 2006.
(Áp dụng công thức chuyển đổi giữa thì quá khứ đơn sang hiện tại hoàn thành.)
(has/have+PII; since+mốc thời gian)
My school has not will the first prize of the English speaking contest since 2016.