I'm really sorry about that.

Meaning

A more emphatic expression of apology.

Examples

• John: I spilled coffee all over your new shirt.
• Alice: Oh no! That's a shame.
• John: <b>I'm really sorry about that</b>. Let me take it to the dry cleaners.
• Alice: Thanks. It's okay, accidents happen, but <b>I'm really sorry about that</b>, as it was a brand new shirt.