I'm to blame for...

Meaning

Accepting responsibility.

Examples

• John: The project is behind schedule.
• Alice: I understand. <b>I'm to blame for</b> the delay. I underestimated the workload.
• John: Don't worry too much. It happens. I'm also responsible since I <b>I'm to blame for</b> the lack of support.
• Alice: Thanks for your understanding. I'll work harder to get us back on track.