Possesive case

Mothers' flat

Mother' flat

Mother's flat

Mothers flat

Jack's son

Jack' son

Jackses son

Jacks' son

The mans' name

The mans's name

The man's name

The men name

The student's mark

The student ' mark

The students' mark

The student mark

 The children's balls

 The childrens's balls

The children' balls

The child`s balls

That boy's parents

That boy' parents

That boys' parents

That boys parents

The dog's food

The dogs's food

The dogs' food

The dogs food

my brother-in-law`s notebook

me brother`s law`s notebook

my brother`s law notebook

my brother-in-law notebook

Peter`s and Anna`s book

Peter`s and Anna book

Peter and Anna`s book

Peter and Anna book

passer-by bag

passer`s-by bag

passer-by`s bag

passer`s-by`s bag

Ann`s and Ben`s bikes

Anns and Bens bikes

Ann and Ben`s bikes

Ann`s and Ben bikes

My parents room

My parent`s room

My parents` room

My parent room