how do you say "happy birthday" in european portuguesse?
from what i have seen on google it's "muitos parabens" but i dont know how to pronounce it

Question

Answer

You can say it in 3 ways:

Muitos parabéns
Feliz aniversário
Parabéns.

Answer

Parabéns. 
Feliz  Aniversário.

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You can also say: "Meus parabéns!" in Brazil.

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In Brazil we use to say:

Feliz Aniversário!
Parabéns!
Parabéns pra você!

You can hear the pronounce in this video - http://youtu.be/wdPE9r-Qk6s