Collocations for apologize - verb

sincerely
profusely
He apologized profusely for the damage he had caused.

humbly, meekly, sheepishly
I do apologize most humbly. (formal)

formally, personally, publicly
The president of the company apologized personally for the tragic accident.

hastily, immediately, quickly

ought to, should
want to, wish to, would like to
I would like to apologize most sincerely for any embarrassment caused.

for
She apologized for being late.

to
He apologized to his colleagues.

I do apologize, I must apologize
I must apologize for not letting you know sooner.