Plural of Nouns Ending in -s

Level 2

Some nouns that end in -s add -es in the plural.

How It Works

A noun that ends in a vowel plus -s adds -es in the plural. Temps, which usually keeps its form (los temps), has its own entry.

Singular	Plural	English
lo pas	los passes	step
lo país	los païses	country
lo mes	los meses	month
lo peis	los peisses	fish
lo cas	los cases	case
lo vas	los vases	vase

A single s between vowels sounds like z, and ss sounds like s. That is why mes becomes meses (with a z sound) and pas becomes passes (with an s sound). In país, the plural also takes the dots of païses. Do not leave these nouns unchanged: los pas is a mistake.

Examples (4)

Los meses passan.
The months pass.
Mes adds -es to make meses.
Los païses son grands.
The countries are big.
País becomes païses.
Fau dos passes.
I take two steps.
Pas becomes passes.
Los peisses son dins l'aiga.
The fish are in the water.
Peis becomes peisses.

Common Mistakes

Leaving the noun unchanged in the plural.
Fau dos pas.
Fau dos passes.
A noun ending in a vowel plus s adds -es: pas, passes.

How It Connects

Tap a pattern to see what it builds on and what it leads to.

Plural of Nouns Ending in -sLevel 2

Learn This First

Nouns ending in -s that add -es are the other half of the plural rules, so nouns that keep the same plural come first.

Nouns That Do Not Change in the Plural
Know nouns that stay the same in the plural, because los meses and los païses are the nouns that do add -es: Los meses passan.
Level 1

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