I have to go to school.主语I谓语动词go,toschool作状语,have to做情态动词或副词行吗?要不该怎么样?

问题描述:

I have to go to school.主语I谓语动词go,toschool作状语,have to做情态动词或副词行吗?要不该怎么样?
我没有积分谢谢你.

I have to go to school
主语是I ,谓语动词是have to go (其中have to是情态动词,接动词原形go一起)
to school 是状语,school又作介词to的宾语,你的明白?ought to,used to,在以上句型中也是做情态动词吗?want to呢?ought to,used to也是情态动词,want 是行为动词,to do sth 不定式作宾语