hasto后面加什么

has to后面的动词是原型，例如She has to write 希望可以帮到你；

has to 意思是必须；

has

have 的第三人称单数现在时形式

She has to do her military service.

她必须服兵役。

He always has to have the last word in any argument.

在任何争论中总是得他最后说了算。

A politics of the future has to engage with new ideas.

未来的政治制度必须同新思想结合。

He has to manage on less than 100 a week.

他就靠每周不到100英镑来维持生活。

The system is inadequate for the tasks it has to perform.

这个系统要完成它的任务还不够完善。

One has to ask oneself what the purpose of the exercise is.

大家必须问一问自己，这个锻炼的目的是什么。