1. As a possessive adjective:
* son/sa/ses (masculine singular, feminine singular, plural)
Example:
* Son livre est sur la table. (His book is on the table.)
* Sa voiture est rouge. (Her car is red.)
* Ses amis sont gentils. (His/Her friends are nice.)
2. As a possessive pronoun:
* le sien/la sienne/les siens/les siennes (masculine singular, feminine singular, masculine plural, feminine plural)
Example:
* Ce livre est le sien. (This book is his.)
* Cette voiture est la sienne. (This car is hers.)
* Ces amis sont les siens. (These friends are his.)
3. As a reflexive pronoun:
* se (for all genders and numbers)
Example:
* Il se lave les mains. (He washes his hands.)
* Elle se brosse les cheveux. (She brushes her hair.)
* Ils se regardent. (They look at each other.)
4. To refer to something belonging to a thing:
* son (masculine) or sa (feminine)
Example:
* La maison a sa propre piscine. (The house has its own pool.)
* Le chat a son propre panier. (The cat has its own basket.)
It's important to choose the correct translation based on the context and the gender of the noun it refers to.