你知道后悔了要怎么说吗？

我要是不说那话就好了。I shouldn't have said that.

-It's too late now.

-I wish I wouldn't have said that.

 

我早该知道了。I should have known.

-He's married.

-I should have known.

-I acted like a fool.

-I should have known better.

 

做那种事，我也太不小心了。It was careless of me to do so.

-It was thoughtless of me to do such a thing.

-It was hasty of me to do so.

-I was careless.

 

我后悔我做的事。I regret doing that

-I regret doing that.

-I know what you mean.

-I regret my action(s).

-I am sorry for what I have done.

 

我别无选择。I had no choice.

-Why did you drive my car?

-I had no choice.

 

我做得太过了。I went too far.

-You shouldn't have done that.

-I know, I went too far.

 

我太紧张了。I was too nervous.

-Did you ask her out?

-No, I was too nervous.

-I was too uptight.

我要是再用功点就好了。I wish I had studied harder.

-I regret not studying harder.

-I should have studied harder.

 

我要是问他一下就好了。I should have asked him.

-I should have asked him.

-Why didn't you?

-I wish I had asked him.

-It would have been better to have asked him.

 

不留神给忘了。It slipped my mind.

-Did you remember to tell her?

-Sorry, it slipped my mind.

-I forgot all about it.