I'm apologetic for you.
I am sorry about your child. I understand how difficult such a situation can feel. Please, receive my sincere apologies.
I'm regretful about the little one. I understand what challenging such a situation can feel. I urge you, receive my heartfelt condolences. I truly am saddened the trouble inflicted. I feel hoping that you will forgive me.
I'm apologetic for you.
I am sorry about your child. I understand how difficult such a situation can feel. Please, receive my sincere apologies.
I'm regretful about the little one. I understand what challenging such a situation can feel. I urge you, receive my heartfelt condolences. I truly am saddened the trouble inflicted. I feel hoping that you will forgive me.