I used to enjoy playing football. (我过去喜欢过踢足球,现在不喜欢了)I enjoyed playing football. (我过去喜欢踢足球,现在现在喜欢不喜欢不清楚)
I enjoyed playing football.您要问的过去式是什么的过去式啊?动词就直接加ed。
I used to enjoy playing football.
I enjoyed playing football.
I enjoyed piaying football