why does he must leave early? 是对的还是错的 . 为什么

问题描述:

why does he must leave early? 是对的还是错的 . 为什么

错的。why must he leave early?must是情态动词,其疑问句直接将情态动词提前。

错的,must 是情态动词,不能用does提问.应该是:
Why must he leave early?