One of my neighbours died some days ago. I want to write his widow a card (to not get in contact too much, because of corona-restrictions here) to express the condolences of our family. The widow speaks most Russian, and we do not share much common vocabulary in any language.
I tried to find some phrases or typical sentences via websearch, but because I am not able to read the Cyrillic alphabet, I am not very successful.
An additional "problem": I want to add some small amount of money, for some flowers at the grave, because it is not allowed to visit the burial itself. In my first language I would write something like "for a flowery greeting" or "for a greeting by/with flowers".
In conclusion I ask: Is there a common phrase to express condolences?
(And would be happy, if someone could add some additional nice words or phrases, I could use to write into the card)