I'm regretful about the little one.
I am apologetic about you. I understand how difficult such a situation can be. I kindly request, accept my heartfelt apologies.
I feel regretful for your child. I understand how challenging such a situation can feel. I kindly request, accept my sincere condolences. I genuinely am saddened for the trouble caused. I am anticipating that your child will forgive me.
