Your sister's son
nephew
Your parents niece and newphew are also your...?
Cousins
Your wife's sister
sister-in-law
When your brother or sister has children, they are your...?
Niece and nephew
When you have children, they are your...?
Son and daughter
When you get married, Your wife or husband's parents become your...?
Mother / Father -in-law
Your mum's brother
uncle
Your daughter's husband
son-in-law
When a man and women get married, they become...?
Husband and wife
Your husband's mother
mother-in-law
Your brother's daughter
niece
Your mother's grandfather
great-grandfather
Your parents' daughter
sister
Your dad's father
grandfather
Your mum's sister
aunt
Your mother's mum
grandmother
Your uncle's son
cousin