Look at the sentences:
Puis-je emprunter ton vélo? J'ai perdu le mien.
Can I borrow your bike? I've lost mine.
C'est à qui ce stylo? C'est le mien.
Whose is this pen? It's mine.
Ces lunettes de soleil ne sont pas les siennes.
Those sunglasses are not his.
The expressions for 'mine', 'yours' and 'his/hers' in French agree in gender and number with the noun they imply or replace:
mine | yours | his/hers | |
masc.sing. | le mien | le tien | le sien |
fem.sing. | la mienne | la tienne | la sienne |
masc.pl. | les miens | les tiens | les siens |
fem.pl. | les miennes | les tiennes | les siennes |
See also Le nôtre, le vôtre, le leur, etc = Ours, yours, theirs (possessive pronouns)
and Expressing possession with être à
Learn more about these related French grammar topics
Examples and resources
Puis-je emprunter ton vélo? J'ai perdu le mien.
Can I borrow your bike? I've lost mine.

C'est à qui ce stylo? C'est le mien.
Whose is this pen? It's mine.
Ces lunettes de soleil ne sont pas les siennes.
Those sunglasses are not his.
J'aime bien ta voiture, elle est mieux que la mienne.
I like your car, it's better than mine.
Q&A

Cécile
Kwiziq language super star
5/11/18
Hi Sherilyn,
Take a look at the following lesson which explains when to use lui (him/her) and leur (them):
Le sien/ la sienne are just different pronouns ( called possessive) to say his/hers/its .
Hope this helps!

Ron
Kwiziq community member
21/06/17

Laura
Kwiziq language super star
11/04/17
Melody
Kwiziq community member
16/06/16

Aurélie
Kwiziq language super star
17/06/16
Bonjour Melody !
Thank you for your request, these links were indeed much needed, and thanks to you, they've been added to the related lessons.
Here is the link to the lesson regarding expressing possession with être à + stress pronoun:
https://progress.lawlessfrench.com/revision/grammar/how-to-express-possession-with-etre-a
Merci et à bientôt !
Johanna
Kwiziq community member
17/11/18
Ann
Kwiziq community member
2/01/19
I wondered exactly the same thing so thank you for asking the question
Katy
Kwiziq community member
14 January 2019
2 replies
Is tien or tienne appropriate is this a formal situation where you would use ‘Vous’?
Cécile
Kwiziq language super star
14 January 2019
14/01/19
Hi Katy,
If you use the polite ‘vous’, these will be the wrong pronouns to use . You have to use ‘le/la/les vôtre/s’ just as if ‘vous’ represented several people.
Take a look at the following lesson which will give you more details -
https://progress.lawlessfrench.com/revision/grammar/how-to-express-ours-yours-theirs-le-notrele-votrele-leur-possessive-pronouns
Hope this helps!
Katy
Kwiziq community member
14 January 2019
14/01/19
Merci beaucoup!