I'm sorry.
A2A general expression of apology.
I apologize.
A2A more formal way to say sorry.
Excuse me.
A2Used to apologize for a minor inconvenience.
My bad.
A2Informal way to say sorry; accepting fault.
I'm so sorry.
A2Expressing deeper regret.
Please forgive me.
A2Asking for pardon.
That's my fault.
A2Accepting responsibility.
I made a mistake.
A2Acknowledging an error.
I messed up.
A2Informal way to say you made a mistake.
I didn't mean to.
A2Expressing lack of intention to cause harm.
I feel bad about it.
A2Showing remorse.
I regret it.
A2Expressing sorrow over a past action.
It was my fault.
A2Taking responsibility.
I should have...
A2Expressing what one should have done differently.
I'll try to do better.
A2Promise of improvement.
Forgive me?
A2Directly asking for forgiveness.
I owe you an apology.
A2Acknowledging a debt of apology.
I am truly sorry.
A2Expressing sincere regret.
I deeply regret...
A2Expressing deep regret for a specific action.
It won't happen again.
A2Assuring that the mistake won't be repeated.
I apologize for the mistake.
B1A formal and direct apology.
I'm so sorry for the error.
B1A more casual and heartfelt apology.
Please accept my apologies.
B1A formal way to offer an apology.
I take full responsibility.
B1Acknowledging your mistake and ownership.