Apostrophe

The jumper that belongs to the boy.

• 
  The boy,s jumper.

• The boy's jumper.

• The boys' jumper.

• The boys jumper.

The glasses that belong to the teacher.

• The teacher's glasses.

• The teacher,s glasses.

• The teachers glasses.

• 
  The teachers' glasses.

The whiskers that belong to the cats.

• 
  The cats whiskers.

• 
  The cats' whiskers.

• 
  The cat,s whiskers.

• The cat's whiskers.

The pens that belong to the girls.

• The girls' pens.

• The girls pens.

• 
  The girl's pens.

• The girl,s pens.

The lunchbox that belongs to the girl.

• 
  The girls' lunchbox.

• The girl's lunchbox.

• The girls lunchbox.

• The girl"s lunchbox.

The classroom that belongs to the children.

• 
  The childrens classroom.

• 
  The childrens' classroom

• The children's classroom.

The bag belonging to the man.

• The man's bag.

• The mans' bag.

• 
  The mans bag.

• The man,s bag.

The bags that belong to the men.

• The menss bags.

• 
  The mens' bag's.

• The men's bag's.

• 
  The men's bags.

The house belongs to my parents.

• 
  My parent's house

• My parentss house

• My parentses house

• My parents' house

The tools belonging to the plumbers.

• 
  The plumberers tools

• The plumber's tools

• The plumbers' tools

• The plumbers's tools