My apologies; I should have been more careful.

Meaning

Expressing regret and acknowledging lack of care.

Examples

• John: 'My apologies; I should have been more careful while reviewing the data.'<br>
• Alice: 'It's okay, John. Just make sure it doesn't happen again.'
• John: 'It's alright, Alice. Let's prevent this from happening in the future.'
• Alice: 'My apologies; I should have been more careful when handling those documents, John.'<br>