My sister has a car
My sister owns a car
(This is) my sister’s car
This car belongs to my sister
(This is) the car of my sister – correct but not usual

My sister has two cars

Proper Nouns ending with “s”

Jane has a car
This is Jane’s car
Marcus has a car
This is Marcus’s car


I have two sisters
They both own a car
They half own a car
They bought the car together
This is the family car
X: This is my sister’s car
O: This is my sisters’ car

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