1. My mother's mother is my father's
........
2. My name's Paul. I'm my grandpa's..........
3. My name is Marianne. I'm my grandpa's
4. Paul and Marianne are their grandpa and grandma's.........
........
2. My name's Paul. I'm my grandpa's..........
3. My name is Marianne. I'm my grandpa's
4. Paul and Marianne are their grandpa and grandma's.........
2.grandchild.
3.grandchild
4.grandchildren
hope it will help you and don't forget to follow