Family 1
brother
hermano
uncle
tio
grandfather
abuelo
step sister
hermanastra
my (singular)
mi
sister
hermana
aunt
tia
grandmother
abuela
nephew
sobrino
his (singular)
su
father
padre
cousin(boy)
primo
grandson
nieto
niece
sobrina
our (plural and girls only)
nuestras
mother
madre
cousin (girl)
prima
grand daughter
nieta
brother-in-law
cuñado
Their (plural)
sus
step mother
madrastra
Step father
padrastro
step brother
hermanatro
sister-in-law
cuñada
Your (plural mixed)
vuestros