In French, you will never see an apostrophe "s." Possession is shown in a couple of different ways. One way is to use the preposition de (of) when you are expressing the possession in third person.
Example: le livre de Paul (Paul's book)
Another way to show possession is by using "possessive adjectives." Possessive adjectives are used to either establish a relationship between people or things, or to indicate that something belongs to someone. Read the sentences below and note how the possessiv…
our (singular, feminine and masculine)
your (singular/masculine and feminine)
their (singular/masculine and feminine)
We use "de" instead of an apostrophy s -'s - to show possession