So there's always something for you to do if you have the time to do it.

所以你要是有时间，总是有事可做。

有趣的宿舍生活 - SpeakingMax英语口语达人

If you know how to do it, you can get it for really cheap.

要是你知道怎么做的话，你就可以买到很便宜的票。

实惠的歌舞剧 - SpeakingMax英语口语达人

So this is something you'd want to use if it was extreme.

要是他们做得特别突出时，你也会使用这个句型。

You look 课堂 - SpeakingMax英语口语达人

What if you were me?

要是你是我，你会怎么做？

What if 实战 - SpeakingMax英语口语达人