Definition from macmillandictionary.com
I’m sorry – I shouldn’t have blamed you.
Sorry, I didn’t mean to step on your foot.
Sorry, I should have phoned to let you know I’d be late.
I’m sorry about the misunderstanding.
Sorry, do you know what time it is?
I’m sorry for the intrusion, but you have a phone call.
I’m sorry, what was your name again?
You need to catch the number 3, sorry, the number 23 bus to Market Street.
I’m sorry but I don’t see how you expect us to finish by lunchtime.