finish doing sth是什么时态

It will be weeks before they finish doing their homework.

要过好几周他们才能完成家庭作业。

When you finish doing the crossword, the solution is on the back page.

在你完成填字游戏后，答案就在反面。

Can I just finish doing this? I won't be a minute.

让我把这个干完好吗？我很快就好。

Can I just finish doing this?

我能否就完成这件事？

She has to finish doing her homework now.

现在，她不得不完成作业。