Singular
my father
What is mi padre?
her computer
What is su computadora
my papers
What is mis papels
your (informal) backpack
What is tu mochila
his uncles
What is sus tios
their boots
What is sus botas
my friend
What is mi amigo
(formal) your cousins
What is sus primos
their houses
What is sus casas
our Spanish class
What is nuestro clase de español
our classes
What is nuestros clases
your (plural, formal) exams
What is sus examens
(formal) your pencil
What is su lápiz
our grandfather
What is nuestro abuelo
their dogs
What is sus perros
my parents
What is mis padres
our pet
What is nuestras mascota