Do we add "a" before happy birthday

Do we add “a” before happy birthday .Let me know if these sentences are right:

  1. Wish you a very happy birthday.(can I say very before “happy birthday” and also can I add “a” over here)
  2. Wish you a happy birthday in advance
  1. I wish you a very happy birthday.(can I say very before “happy birthday” -- Yes
    and also can I add “a” over here-- over where?)

  2. I wish you a happy birthday in advance.

If you don’t use the article, I suggest capitalizing:

I wish you a happy birthday.
I wish you Happy Birthday.

What about “[color=darkblue]Wishing you a happy birthday”?

Hi Tofu,

That’s more common with the article as you have written it, but it is also correct without the article.

Wishing you a happy birthday-- this is isn’t a complete sentence (nor was the original). As greeting card text it is common.

Thank you, B and MM.

[color=blue]is or [color=green]isn’t?

isn’t-- the green one.