Genitive-s: It is used to show possession.

 Put in s-Genitiv or plural-s.
 Paul is a man name.
 We go to Angela party.
 Tina with 2 brother.
 Mike is Donna husband.
 The computer are old.
 Martha is Sarah mother.
 There is Allen. He is Emma brother.
 This is Tom bike. Tom has got 2 bike.
 There are 20 book in the  classroom.
 Look, Andrew son!
 The cat name is Tiger.
 Allen dog is hungry.
 There are 3 tree in the garden.