When do you use nuestro/a and when do you use nuestros/as? Same for mi/mis, su/sus, etc.

Answer 1

Based on your inquiry, these are the uses for these Possessive Adjectives

Mi = First Person Singular (Yo) / Masculine and Feminine Singular Form

Mis = First Person Singular (Yo) / Masculine and Feminine Plural Form

Tu = Second Person Singular (Tú) / Masculine and Feminine Singular Form

Tus = Second Person Singular (Tú) / Masculine and Feminine Plural Form

Su = Second Person Singular (Usted) / Masculine and Feminine Singular Form

Sus = Second Person Singular (Usted) / Masculine and Feminine Plural Form

Su = Third Person Singular (El/Ella) / Masculine and Feminine Singular Form

Sus = Third Person Singular (El/Ella) / Masculine and Feminine Plural Form

Nuestro / Nuestra = First Person Plural (Nosotros) / Masculine and Feminine Singular Form

Nuestros / Nuestras = First Person Plural (Nosotros) / Masculine and Feminine Plural Form

Vuestro / Vuestra = Second Person Plural (Vosotros) / Masculine and Feminine Singular Form

Vuestros / Vuestras = Second Person Plural (Vosotros) / Masculine and Feminine Plural Form

Su = Second Person Plural (Ustedes) / Masculine and Feminine Singular Form

Sus = Second Person Plural (Ustedes) / Masculine and Feminine Plural Form

Su = Third Person Plural (Ellos / Ellas) / Masculine and Feminine Singular Form

Sus = Third Person Plural (Ellos / Ellas) / Masculine and Feminine Plural Form

Spanish possessive adjectives are adjectives that indicate who or what possesses or owns something. Remember that these adjectives match the possessed entity in gender and number, not the possessor.