POSSESSIVE ADJECTIVES
Possessive adjectives are used to indicate ownership or possession. The adjectives mi, tu, and su only have two forms: singular and plural. The possessives for the nosotros and vosotros forms have 4 forms: singular, plural, masculine and feminine. Be careful with your gender-number agreement between adjective and noun when using the nosotros and/or vosotros forms!
Your possessive adjectives are as follows:
| Mi(s) - my | nuestro/a/os/as - our |
| Tu(s)- your | vuestro/a/os/as - your |
| Su(s) - his, her, your | su(s)- their, your |
*Although both third person subject areas have "su" (it can mean his, her, their, or your), the exact meaning is usually clear from the context of the sentence.
Mi libro mis libros
Tu casa tus casas
Su coche sus coches
Nuestra clase nuestras clases
Vuestro amigo vuestros amigos
Su billete sus billetes
Remember that with possessive adjectives, it is not the subject that is important, it is the gender and number of the object(s) being possessed. The subject only tells you which adjective form you will use (corresponding to the yo, tú, él, ella, etc..). whereas it is the possessed object that will dictate the gender and number of the adjective to be used.
La casa que te pertenece a ti = tu casa
Las tortillas de Javier = sus tortillas
Los libros de ella = sus libros
El cumpleaños de mi hermano = su cumpleaños
Las servilletas de vosotros = vuestras servilletas
La lámpara de nosotros = nuestra lámpara