it's not mine
El cuarto no es mío, es de mi hermana Anna.
The room is not mine, it belongs to my sister Anna.
— El ladrón (1997)
El libro que trajiste no es mío.
The book you brought is not mine.
This car is not mine.
El dinero que hay encima de la mesa no es mío.
The money on the table isn't mine.
That money isn’t mine.
This dictionary isn't mine.