Italian plurals have only two endings. They are -e and -i. Unlike in English and other Romance languages such as French, Portuguese and Spanish, the plural does not end in -s. Let us look at examples of plurals in Italian.
The word libro means book and the word for books is libri. The same patterns occur with biscotto/biscotti (biscuit/biscuits) and gatto/gatti (cat.cats). However, with the words casa/case (house/houses), birra/birre (beer/beers) and tazza/tazze (cup/cups), the plural ending is -e.
In certain cases, the noun does not change. Examples include bar/bar (bar/bars), film/film (film/films) and città/città (city/cities). Nouns do not change if they end in a consonant or in a stressed vowel.
Italian plurals can end in -e and in -i. In certain cases, the noun is the same in both the singular and plural. Another Romance language that primarily forms plurals with -e and -i is Rumanian. Italian masculine nouns form the plural with -i and feminine nouns form the plural with -e.