根据the big book of how to say it,有几个简单的句子可以使用
It seems impossible to speak of any consolation in the face of such a bitter loss.
Please extend our(my) condolences to the members of your family.
"Please accept my sincere condolences on the death of XXX."
Our love and support will always be here for you.
What I am feeling right now is hard to put into words.
She's in a better place.
I know how you feel.
We will all miss XXX; she touched so many of our lives
He's at peace now.
