When to use il, la or lo? I have a book on Italian but it doesn't explain in enough detail. There is a chart that shows this information: il panino - i panini la pizza - le pizze I already understand the il panino is a masculine noun and that i panini is the plural form meaning "the sandwiches" I also know that la pizza is a feminine noun and that le pizze means the pizzas. My question is just by choosing any group of nouns let's say: man - uomo men - uomini woman - donna women - donne So is the pattern always the same for basic singular masculine and feminine nouns (aside from the l' nouns)? Are all nouns ending in an "o" pluralized into the "i" form and do all nouns ending with an "a" end with "e" in the plural form?