Написать предложения в отрицательной и вопросительной форме!!!пожалуйста помогите
1)Your mum is happy.
2)My dad is tall.
3)You are Billy.
4)My granny is pretty.
5)We are happy.
6)He is ten.
7)It is a puppy.
8)They are old.
9)My friend is beautiful.
10)Her sister is nice.
11)We are doctors.
12)They are clowns.