have to在句子一般什么作用?谓语?比如一个句子：I have to do it。谓语是do 还是 have to？have _英语解答

have to在句子一般什么作用?谓语?
比如一个句子：I have to do it。
谓语是do 还是 have to？have to 是作修饰的么?

人气：498 ℃　时间：2020-03-28 17:38:21

解答

have to 相当于情态动词 must
have to+动词原形共同做谓语