Schönen vierzigsten.
I wish you a happy fortieth birthday = Ich wünsche dir einen schönen vierzigsten Geburtstag.
Happy fortieth birthday in German is alles Gute zum vierzigsten Geburtstag!
Assuming you mean "how" to say happy in German, there are a couple of different ways: Froh and gluecklich.
Happy Friday in German is glücklicher Freitag
happy - glücklich Also fröhlich, froh
In Pennsylvania German, you can say "Ei glickliche Geburdsdaag!" to wish someone a happy birthday.
I am not a happy puppy is an English idiom and cannot be translated into German in a way that conveys it's meaning.
happy married life = glückliches Eheleben
"Happy Saint Patrick´s Day" in German is: Fröhlichen St. Patricks Tag
Frohes Neues Jahr.
Die glücklichen Kinder.
I am not so happy = ich bin nicht so glücklich
Felice quarantesimo anniversario is an Italian equivalent of the English phrase "Happy Fortieth Anniversary!"Specifically, the feminine/masculine adjective feliceis "happy." The masculine ordinal adjective quarantesimomeans "fortieth (40th)." The masculine noun anniversariotranslates as "anniversary."The pronunciation will be "fey-LEE-tchey KWA-ran-TEH-zee-mo AN-nee-ver-SA-ryo" in Italian.