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Possessive determiners

mi, tu, su, nuestro agree with the thing owned, not with the owner.

Level A1mi casa · tus libros · nuestra

My, your, his…

Possessives go before the noun and replace the article: mi casa (my house), never la mi casa.

They agree with the thing that is owned, not with the owner:

  • mis libros: one owner, many books
  • nuestra casa: many owners, one house

mi, tu and su change only for number; nuestro and vuestro also change for gender.

Forms

PersonMeaningSingularPlural
yomymi hermano, mi casamis hermanos, mis casas
túyour (informal)tu hermano, tu casatus hermanos, tus casas
él, ella, ustedhis, her, its; your (formal)su hermano, su casasus hermanos, sus casas
nosotros, nosotrasournuestro hermano, nuestra casanuestros hermanos, nuestras casas
vosotros, vosotrasSpainyour (plural, informal)vuestro hermano, vuestra casavuestros hermanos, vuestras casas
ellos, ellas, ustedestheir; your (plural)su hermano, su casasus hermanos, sus casas

One *su*, many owners

su and sus can mean “his”, “her”, “its”, “their” or “your” (to usted or ustedes). Usually the context makes it clear; if not, use de + the person after the noun: la casa de ella, la casa de usted.

The possessive always matches the owner's person: Leo mi libro. (I'm reading my book.) Ana lee su libro. (Ana is reading her book.)

Don't confuse tu (your) with tú (you).

Examples

  • Mi hermana vive en Valencia.My sister lives in Valencia.
  • ¿Dónde están tus llaves?Where are your keys?
  • Nuestra profesora es de Bogotá.Our teacher is from Bogotá.nuestra agrees with profesora, not with “we”.
  • Ana y su esposo trabajan en un hotel.Ana and her husband work in a hotel.
  • Señor López, ¿esta es su maleta?Mr López, is this your suitcase?Here su means “your”, to usted.
  • Chicos, ¿vuestra casa está lejos?SpainGuys, is your house far?
  • Chicos, ¿su casa está lejos?Latin AmericaGuys, is your house far?

Common mistakes

  • Wrong: nuestro casaRight: ✓ nuestra casanuestro agrees with casa, which is feminine.
  • Wrong: mi librosRight: ✓ mis librosOne owner, but the books are plural.
  • Wrong: la mi casaRight: ✓ mi casaThe possessive replaces the article.
  • Wrong: ¿Es tú libro?Right: ✓ ¿Es tu libro?tu (your) has no accent mark; tú means “you”.

Try it

Three questions on this rule. Small slips are forgiven, as in the app.

Question 1 of 3
  hermana se llama Ana.My sister's name is Ana.

Related rules

Articles and noun genderSubject pronounsVosotros formsPlural and adjective agreementStress and accent marks

Where you learn it

Family and friends Spanish A1–A2

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