goods nights...

Goods news! Good nights works just like good days - plural form of the nouns and adjectives. In Spanish and French, it's pretty easy:

Spanish buena noche becomes buenas noches (bwehnoss no-chase).

French bonne nuit becomes bonnes nuits (bun nwee - no change in pronunciation, again).

Italian gives us one tricky point. We've already learned that at the end of Italian nouns and adjectives, "o" turns to "i" (giorno becomes giorni), and we've seen that "e" turns to "i" (notte becomes notti). However, "a" turns to... "e". The reasons involve how the Italians chose to a) mispronounce and b) misuse Latin. What you need to know for the plural, though, is this:

-X ->	-Y
-o ->	-i
-e ->	-i
-a ->	-e

Therefore, we take buona notte and change the "a"s to "e"s and the "e"s to "i"s and we get:
Italian buone notti

Whew!