A possessive noun is a noun that is used to indicate that something belongs to someone. For instance, to the question, To whom does this bag belong?, you can say that it is Jessica’s bag. The word ‘Jessica’s’ is the possessive noun here. The general rule to show possession of an object is by adding an apostrophe and an ‘s’ to the end of the noun it belongs to.
Examples:
Nicholas’ brother is a lawyer.
Napoleon’s horse has gone missing for a week now.
My brother’s friends are coming home this weekend.
Brady, Pete and Mark’s room is quite small for all of them.
My mother-in-law’s recipe for mango curry has always been my favourite.