That was completely my fault; I should have...

Meaning

Taking ownership and suggesting what should have been done.

Examples

• John: 'The project is behind schedule because of me.'<br>
• Alice: '<b>That was completely my fault; I should have</b> delegated tasks more effectively.'
• John: '<b>That was completely my fault; I should have</b> reviewed the proposal more thoroughly.'
• Alice: 'The client is unhappy, and it's because of my oversight.'<br>