"We do not have cups!"

Translation: Non abbiamo bicchieri!

[Greenich]

"i" is for plural "the", as "il" is for singular "the".
If the sentence was "We do not have the cups", "Non abbiamo i bicchiere" would have been correct.

[kosheryosher]

Why isn't it "i bicchieri"? I don't understand when to use the article.