Indefinite Articles in Spanish – “UN, UNA, UNOS, UNAS”

Indefinite articles in Spanish (“Artículos indeterminados”) are a collection of words that precede nouns in many circumstances, indicating their gender and number.

They are all equivalent to the English words “a, an” in singular, and “some, a few” in plural.

In this lesson, we will go through the following points:

1. Spanish Indefinite articles: Forms

Because in Spanish we need to match the gender and number of the noun, there are 4 different Indefinite Articles, which are:

 MasculineFeminine
Singularununa
Pluralunosunas


2. Examples with nouns


“un” + singular masculine nouns:

un coche, un profesor, un rayo, un árbol
a car, a teacher, a ray, a tree


“una” + singular feminine nouns:

una casa, una canción, una flor, una mujer
a house, a song, a flower, a woman


“unos” + plural masculine nouns:

unos amigos, unos vasos, unos problemas
some friends, a few glasses, some problems


“unas” + plural feminine nouns:

unas señoras, unas manzanas, unas palabras
a few ladies, some apples, a few words


3. Sentences with Indefinite Articles

Finally, here are some sentences including Indefinite Articles:

Hay un hombre esperando en la puerta.
There is a man waiting at the door.

Mallorca es una isla de España.
Mallorca is an isle of Spain, 

Tengo unos libros interesantes.
I have some interesting books.

Manuel conoce a unas chicas muy simpáticas.
Manuel knows a few very nice girls.


4. Practice: A Quiz

Take this short Quiz to test your knowledge!:


5. Practice: An Exercise

Fill the gaps in your mind or on a piece of paper, using Indefinite Articles. After completing the exercise, check the solutions at the end of this post.

La señora García está en su casa con ___ (1) amigas.
María tiene ___ (2) mensaje para ti.
Voy a traer ___ (3) dulces.
Quiero ___ (4) cerveza, por favor.
En la biblioteca hay ___ (5) libros de historia interesantísimos.
___ (6) chico de mi clase sabe tocar el violín.

Solutions to the Exercise: 1 = unas, 2 = un, 3 = unos, 4 = una, 5 = unos, 6 = Un