A1 Spanish grammar
Spanish Adjective Number Agreement: Singular and Plural Forms
Spanish adjective number agreement makes descriptions singular or plural with their nouns. Add -s after most vowel endings, add -es after most consonants, and check the complete article, noun, and adjective phrase.
Apply Spanish adjective number agreement
A singular noun takes a singular adjective, while a plural noun takes a plural adjective: la casa blanca and las casas blancas.
Las casas son blancas.Quick check
What is the plural of alto?
Add -s after a vowel
Most vowel-ending adjectives add -s: alto becomes altos, roja becomes rojas, and interesante becomes interesantes.
Los libros son interesantes.Add -es after a consonant
Most consonant-ending adjectives add -es: popular becomes populares and trabajador becomes trabajadores.
Son ciudades populares.Common mistakes
Los coches rojo
Los coches rojos
The plural noun coches needs the plural adjective rojos.
Las películas interesantesa
Las películas interesantes
Interesante becomes plural by adding -s, not by changing its gender ending.
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Adjective number agreement FAQ
How do Spanish adjectives become plural?
Add -s after most vowels and -es after most consonants.
Does an adjective agree with the noun or the speaker?
It agrees with the noun it describes.
What is the plural of interesante?
The plural is interesantes for both masculine and feminine nouns.
Do the article and adjective both become plural?
Yes. For example, la casa blanca becomes las casas blancas.