sorry
You say ‘Sorry’ or ‘I’m sorry' as a way of apologizing for something you have done.
‘You’re giving me a headache with that noise.' – ‘Sorry.’
I'm sorry I'm so late.
Be careful
Sorry is an adjective, not a verb. Don't say ‘I sorry’.
Sorry is an adjective, not a verb. Don't say ‘I sorry’.
➜ See regret - be sorry