Due to the fever, I can't attend Linda's birthday party, so please give my regards to our friends when you meet them at the party.
And please give my regards to your wife.
Please give my regards to your family.
Please give my regards to your parents.
Don't forget to give my regards to them.
Thanks for the invitation. And please give my regards to your wife.
Best wishes to you -my parents, please give my regards to my brother and sister.