I have a complaint I would like to make.

我有些怨言。

I've met my soul mate.

我已经找到了精神上的伴侣。

This job is back-breaking work.

这份工作强度很大。

I don't care how much I have to study. I have to pass this exam.

我不介意要学多少东西。我必须得通过考试。

What is your cancellation policy?

我怎么退票？

My boyfriend just broke up with me.

我的男朋友和我分手了。