Phrases Apologies and Excuses

My deepest apologies.

B2

Meaning

I am very sorry.

Example sentences

John: 'I'm truly sorry for the damage I caused.'

Alice: 'My deepest apologies. Can we discuss how to fix this?'

John: 'My deepest apologies. I'll make it up to you.'

Alice: 'I'm very sorry for the inconvenience.'