Tanti_auguri_di_buon_compleanno -

Depending on the level of formality and your relationship with the person, you can use these expressions:

: Literally "a hundred of these days," used to wish someone many more years of life and happiness. tanti_auguri_di_buon_compleanno

To sound like a native, focus on the melodic cadence of these phrases: Depending on the level of formality and your