1 Beth is your mum. She's your dad's wife.
2 Your father's sister is your aunt.
3 Your sister's daughter is your niece.
4 The son of your daughter is your grandson.
5 Your uncle's son is your cousin.
6 Your wife's mother is your mother-in-law.
7 The mother of your father's father is your great-grandmother.
8 Your parents are divorced and your mother is married again. Her new husband is your stepfather.