what does your father often do after supper?

问题描述:

what does your father often do after supper?
在这个句子里为什么前面用does 后面用do

What does your father often do after supper?这是一个一般现在时的特殊疑问句,助动词does表示【一般现在时的时态】,谓语动词用动词原形.