A: I regret for what happened to you.

我对你的事表示遗憾。

youdao

To stay in your comfort zone through mere habit, or—worse still—to stay there because of irrational fears of what may lie outside, will condemn you to a life of frustration and regret.

待在自己的安乐窝里，或是只是因为荒谬地惧怕外面可能的危险，会让你的生活注定与挫折与遗憾相伴。

youdao

People loved it, and I don't for a minute regret the effort I put into making both Matsuhisa and Nobu what they are today.

人们喜欢它，我从不后悔把Matsuhisa和Nobu做成今天这个样子所做的努力。

youdao

Most Japanese regret what a militaristic Japan did to China in the 1930s and 1940s.

ECONOMIST: Terri Schiavo

"I made a mistake and I regret what happened, " he said.

WSJ: Gabriele Marcotti: The Handshake Unheard 'Round The World

The judge said the defendant had told a psychiatrist he did not regret what he had done.

BBC: Wrexham job centre fire threat: Stuart Jones jailed