when did he read english?

问题描述:

when did he read english?
-when did you read English?
-he read it at 9:00 in the morning
为什么这里的read 不是过去式?

-when did you read English?这里的read 是原型
-he read it at 9:00 in the morning 这里是过去式
read 原型和过去式一个词.
祝好!