Oh man, I swear it was an accident. I didn't mean to do it.
I don't know. Are you sure it's something you didn't want to do?
Well, I didn't want it to happen this way, but it was inevitable.
It seems you recognize your mistake but don't genuinely feel bad for it. You should apologize for your mistakes and learn from them. This will allow you to move forward.
I'm saying sorry now though, so I hope I wouldn't get in any more trouble.
I mean it's great to apologize for things that you've done wrong. However, it's important that you really mean it, and don't just hope to get something out of it.