Apologies and Forgiveness

I'm very sorry. / I'm really sorry.

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I'm sorry for... / I'm sorry that...

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I didn't mean to...

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It's my fault.

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I'm to blame.

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I take full responsibility.

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I owe you an apology.

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Can you forgive me?

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I shouldn't have...

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It won't happen again.

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I'd like to make it up to you. / What can I do to make it up to you?

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I forgive you.

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It happens.

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I don't hold it against you.

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Don't worry about it.

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(Let's) forget about it.

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Just drop it.

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It's not your fault.

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No worries.

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Let it go.

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