Your sister is your mom's ...
daughter
Your sister's daughter is your ...
niece
Your mother is my mum. Your father is my dad. I'm your…
sibling
Your father's brother is your ...
uncle
Your mom's mother is your ...
grandmother
Your sister's son is your ...
nephew
Your sister's brother is your ...
brother
You are my son. I am your …
father
My mum and your mum are sisters. I am your ...
cousin
The wife of your father is your ...
mother
The sister of your mother is your ...
aunt
The father of your father is your ...
grandfather
You are the son of my son. You are my …
grandson
Your mother's grandfather is your ...
great-grandfather
Your wife's son is your ...
son
Your father's parents are your ...
grandparents