"Привет" (privet) - in the usual spoken communication, "с наилучшими пожеланиями" (s nailuchshimi pojelaniyami) - official written.
There can be synonyms. One of them Best regards, Bob = С уважением, Боб. [S OovajEnijem, Bob]
Regards
You could say "terveisin", if by regards you mean what you would say at the end of a letter.
kind regards
Kindest Regards
To say sweetheart in Russian you say dorogaya. To say I love you in Russian you would say, Ya lyublyu tebya.
How do you say "Dylan Smith" in Russian?
Trenatsat is how you say thirteen in Russian.
this how you say animal in Russian животное
Джиттербаг is how you say jitterbug in Russian
my wife and I in Russian?
say my regards to your family-if you mean in another language, state which one you need.