Possessive Nouns

Possessive nouns show who owns something or who something belongs to.
Possessive nouns are formed with ('s)

Sarah's car.
Peter's lap top.
The school’s headmaster.

When the noun is plural and ends with 's', just add (')
The babies' toys.
My parents' house.

If one thing belongs to two people add ('s) to the last name.
That is Peter and Sarah's new car.
Danny and Fred's company is very successful.

If two people have separate things, add the ('s) for each person.
Tania's and Mary's children.
Peter's and Simon's offices.

Lesson by Tristan, teacher at EC Malta English school

Now decide which of the following is correct:

• 1 - Which is correct?
  
  That is Peters' new car.
  That is Peter's new car.
  
  
• 2 - Which is correct?
  
  My parents's flat is very big.
  My parents' flat is very big.
  
  
• 3 - Which is correct?
  
  That is Mark's and Anne's son.
  That is Mark and Anne's son.
  
  
• 4 - Which is correct?
  
  Sams and Jacks offices are in that building.
  Sam's and Jack’s offices are in that building.
  
  
• 5 - Which is correct?
  
  We are going to the student's party. They are going to have live music.
  We are going to the students' party. They are going to have live music.
  
  
• 6 - Which is correct?
  
  The teachers' staff room is always very busy.
  The teachers's staff room is always busy.