在时间副词子句或条件子句中表示未来

I will wait here until/till Jason comes. 我会等到Jason来。

When he comes, I'll give him your message.

他来的时候，我会把你的话转给他。

Whether he likes it or not, math is an important subject in school.

不管他是否喜欢数学，它在学校是一门重要的科目。

Don't force him to come if he doesn't want to.

如果他不要来，你不要强迫他。

As soon as I finish my job, I'll go to your place.

我一做完工作就去你那里。