I know , my smile is your favorite or yours favourite
"Your" is a possessive word that works like an adjective. "Yours" is like a noun in that it can be a subject, object, or complement. My smile is your favorite.
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"Your" is a possessive word that works like an adjective.
"Yours" is like a noun in that it can be a subject, object, or complement.
My smile is your favorite.
Yours is my favorite. ("Yours" is the subject of the sentence.)
I sold yours. ("Yours" is the direct object.)
My car is red. Mine is red.