Phrases Phrases for Apologizing for Mistakes

I deeply regret my mistake.

Meaning

Expressing strong remorse.

Translation language

John: 'I made a serious error in judgment.'
Alice: '<b>I deeply regret my mistake.</b> I will make sure this doesn't happen again.'
John: '<b>I deeply regret my mistake.</b> It won't happen again.'
Alice: 'I am sorry for my actions.'