Phrases Phrases for Apologizing for Mistakes

I'm to blame.

Meaning

Accepting responsibility for the mistake.

Translation language

John: 'I'm to blame; I didn't follow the correct procedure.'<br>
Alice: 'It's okay, John. What's the plan to fix it?'
John: 'Alright, Alice. What steps will you take to ensure this doesn't happen again?'
Alice: 'I'm to blame; I should have double-checked the figures.'<br>