This sentence pattern is great when you want to express regret for something that you perhaps did not do.

当你想表达对一些过去没做成的事情感到后悔时，你可以使用这个句型。

youdao

Next time you want to do something you might regret, you have the willpower to say "No".

下次当你想做一些可能会后悔的事情时，你有意志力说“不”。

youdao

"I don't regret going to court," says Marcie, "and I would do it again."

我不后悔上庭审判，我还会这样选择。

youdao

"I do not regret it." he said. "It is better to be defeated battling for an honest idea, than to win by a cowardly trick."

VOA: special.2010.05.27

Because you will come to regret it if you don't do it. But we're not going to grade it.

但是我们不会对此计分,因为不计分所以让你们。

麻省理工公开课 - 计算机科学及编程导论课程节选

This is great when you want to express regret for something that you perhaps did not do.

当你想表达对一些过去没做成的事情感到后悔时，你可以使用这个句型。

I should have 课堂 - SpeakingMax英语口语达人

"We really regret to see Ginny decide to do this, " he told CNN.

CNN: Head of agency that runs Logan Airport resigns

He said it was a sad story and expressed regret that it had anything to do with the Libyan people.

BBC: Yvonne Fletcher

However, military spending is a double-edged sword that can thoroughly distort the behavior of markets even as it is creating millions of jobs, and companies that decide to do business with the Pentagon often come to regret it.

FORBES: Oshkosh Proof That Pentagon Can Make, Or Break, A Company