Apostrophe for possession lesson

We use the apostrophe with a s to show who owns something or to whom something belongs; for example

·     This dog belongs to John = This is John’s dog

·     It is money which belongs to Mary = It is Mary’s money

·     The house is owned by Gary = It is Gary’s house 

Jack has got a car. Jack's car is red.

The girl's bag is new. (1 girl)

The child’s hair is fair. (1 child)

The boys’ team is with orange colours.

(2 or more boys)

The teachers’ books are here.

( 2 more teachers)

Tom and Jerry live in the same house.

Tom and Jerry’s house is big.

But:

Ben and Holly live in different houses.

Ben’s and Holly’s houses are small.