Your uncle's son is your...
primo
Your brother's mother is your...
madre
Your sister's brother is your...
hermano
You are my son. I am your…
padre
Your father's mother is your...
abuela
My mum and your mum are sisters. I am your…
primo/a
Your sister's daughter is your...
sobrina
Your mother is my mum. Your father is my dad. I'm your…
hermano/a
Your mother's husband is your...
padre
Your father's brother is your...
tio
Your wife's son is your...
hijo
You are the son of my son. You are my…
nieto
The daughter of your grandparents and wife of your father is your...
madre
Your aunt's children are your...
primos
Your father's mother or father is your...
abuelo/a
The father of your father is your...
abuelo
The sister of your mother is your...
tia