i have to后面加什么

i have to表示客观需要做的事情,意思是“必须”、“不得不”.后跟动词原形,有人称、 时态和数的变化,与情态动词 must 近义。

How many times do I have to tell you not to do that?

我得跟你说多少回不要做那种事？

I have to go and get my mother from the airport.

我得去机场接我的母亲。

I have to collect the children from school at 3 o\'clock.

我得在3点钟到学校接孩子。

I have to leave work early today.

我今天得早点儿下班。

I have to go to the hospital.

我得到医院去。

First I have to get through the exams.

首先我必须通过这些考试。