You say "Happy St Patricks Day"!
"Happy Saint Patrick´s Day" in German is: Fröhlichen St. Patricks Tag
lykkelig mors dag!
Maligayang Saint Patricks Day! i used google translate. :D
forsinkede gratulerer med
You would not say Happy Birthday in Norwegian as it is not grammatically correct. You would however say "Gratulerer med dagen" which means Congratulations with the day.
gledelig alle hjerters dag (happy all hearts day) lykkelig Valentinsdag < Happy Valentine's Day.
lykkelig mors dag!
"Fröhlicher St Patrick's Tag" is the translation, but normally when mentioning an event one uses the original phrase..
No. Go raibh maith agat means Thank you. Lá (fheile) Phadraig shona dhuit is happy st patricks day (not sure about spelling).
Norwegians don't say happy holidays. One can say "God Jul" for Merry Christmas if that is what you ment.
gratulerer med dagen mor