have to 后加什么形式

　　We may have to take military action.

　　我们可能不得不采取军事行动。

　　We have to set a time limit for the work.

　　我们得为这项工作规定个期限。

　　Now she won't have to go out to work any more.

　　现在她不必再出去工作了。

　　I'd love to come, only I have to work.

　　我很想去，但是我要上班。

　　You're going to have to give a little.

　　你可能非得稍为让步不可。