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Spanish Grammar: Un and Una: Rules, Examples and Exercises

Published on February 27, 2024 | Updated on October 26, 2024

Today, you will learn how to make sentences with “un” and “una.”, two common articles necessary to write grammatically correct sentences in Spanish.

Both “un” and “una” are singular indefinite articles, meaning they refer to nonspecific or unidentified items. They are equivalent to the English articles “a” or “an.”

These are some of the sentences you can make with “un” and “una.”

  • Tengo un problema (I have a problem)
  • Ella tiene una hija (She has a daughter)
  • Ella compró una computer ( She bought a computer

Let’s check the rules, more examples, and even complete some exercises so you can feel comfortable using “un” and “una.”


Rules for Using “Un” and “Una”

In Spanish, nouns are categorized as either masculine or feminine.

The articles “un” and “una” correspond to masculine and feminine nouns, respectively.

Use “un” with masculine nouns and “una” with feminine nouns.

Keep in mind that

  • Masculine Nouns: Often end in -o
  • Feminine Nouns: Often end in -a

Examples of “Un” and “Una”

These are some example with some common nouns in Spanish that end in “a”

SpanishEnglish
Una casaA house
Una computadoraA Computer
Una vecinaA neighbor
Una SillaA chair
Una plantaA planta
Una amigaA female friend

These are some sentences with “un” and nouns that end with “on”

SpanishEnglish
Una canciónA song
Una televisiónA television
Una lecciónA lesson
Una mansiónA mansion

These are some sentences with “un” and nouns that end with “o”

SpanishEnglish
Un carroA car
Un perroA dog
Un niñoA boy
Un rioA river
Un gatoA cat

These are some sentences with “un” and nouns that end with “or”

SpanishEnglish
Un profesorA professor
Un doctorA doctor
Un actorAn actor
Un directorA principal
Un conductorA driver

Un vs Una Spanish Exercise

Complete these basic sentences using “un” or “una”

1. Yo tengo casa

2. Ella tiene carro

3. Necesito lápiz

4. El niño tiene perro

5. Mi hermana quiere bicicleta nueva.

6. Mi abuela vive en casa pequeña

7. Ellos tienen gato negro

8. Hay libro interesante en la biblioteca.

9. Voy a comprar manzana

10. Yo tengo pequeña empresa


Manuel Campos

Manuel Campos

I live in Costa Rica, I am an Spanish Native speaker and I am English teacher so I am sure that I will share valuable insights if you really want to learn Spanish