Cats/tails
Cats' tails
What time is it now?
It's half past nine
Men/hats
Men's hats
The parents/children
The parents' children
Children/toys
Children's toys
Kate/dog
Kate's dog
The child/ ball
The child's ball
the boys/ cars
The boys' cars
Sisters/caps
Sisters' caps
the Girl/rose
the Girl's rose
Paul/sister
Paul's sister