1. The possessive adjective's ending is always determined by the word directly following it.
2. You never use ma, ta, sain front of a word starting with a vowel or mute h, even if the related noun is feminine: you use mon, ton, son instead, to ease pronunciation.
Here are the different contexts where this rule matters:
mon / ton / son + feminine noun starting with a vowel/mute h
mon ami Thomas et mon amie Sarahmy friend Thomas and my friend Sarah
Monaventure est une aventure passionnante.My adventure is an exciting adventure.
J'ai une horloge qui est plus grande que tonhorloge.I have a clock which is bigger than your clock.
Sonopinion est une opinion intéressante.His opinion is an interesting opinion.
When ma, ta, sa is followed directly by a feminine noun starting with a vowel or mute h, it becomes mon, ton, son.
ma / ta / sa + adjective starting with a consonant + feminine noun starting with a vowel/mute h
C'est tonamie ? - Non, c'est mapetite amie.She is your friend? - No, she is my girlfriend.
Il se souvient de sonenfance, sabelle enfance.He remembers his childhood, his beautiful childhood.
C'est monhypothèse. - Oui, tamauvaise hypothèse !That's my hypothesis. - Yes, your bad hypothesis!
If ma, ta, sa is followed directly by an adjective starting with a consonant, even if the related feminine noun starts with a vowel or mute h, it remains ma, ta, sa.
mon / ton / son + adjective starting with a vowel/mute h + feminine noun
J'ai goûté tonexcellente tarte aux pommes !I tried your excellent apple tart!
Tu as rencontré monhorrible tante ?Have you met my horrible aunt?
Tu as vu sonénorme verrue?Did you see her huge wart?
If ma, ta, sa is followed directly by an adjective starting with a vowel or mute h, even if the related feminine noun starts with a consonant, it becomes mon, ton, son.
The question of "y"
In French, the letter "y" is (rarely) used as a vowel: Yves, cygne, gym... However, most words starting in "y" in French are of foreign origin, where "y" is used as a consonant: yacht, yaourt...
So here's the rule of agreement of mon/ma in front of feminine nouns starting with this peculiar letter:
- If the first letter "y" is used as a consonant, then it remains ma, ta, sa.
Ma grand-mère sort sayaourtière.My grandma is taking her yoghurt-maker out.
MaYoutubeuse préférée est Natoo.My favourite (female) Youtuber is Natoo.
- If the first letter "y" is used as a vowel (very rare), then it becomes mon, ton, son.
Il aimait son Yvette chérie.He loved his darling Yvette.
Je ne vois pas monYvonne ! Où est-elle ?I can't see my Yvonne! Where is she?
Want to make sure your French sounds confident?
We’ll map your knowledge and give you free lessons to focus on your
gaps and mistakes. Start your Brainmap today »
une assiette -> mon assiettea plate -> my plateIl aimait son Yvette chérie.He loved his darling Yvette.
mon ami Thomas et mon amie Sarahmy friend Thomas and my friend SarahSonopinion est une opinion intéressante.His opinion is an interesting opinion.Monaventure est une aventure passionnante.My adventure is an exciting adventure.J'ai une horloge qui est plus grande que tonhorloge.I have a clock which is bigger than your clock.Tu as rencontré monhorrible tante ?Have you met my horrible aunt?J'ai goûté tonexcellente tarte aux pommes !I tried your excellent apple tart!Je ne vois pas monYvonne ! Où est-elle ?I can't see my Yvonne! Where is she?Tu as vu sonénorme verrue?Did you see her huge wart?Ma grand-mère sort sayaourtière.My grandma is taking her yoghurt-maker out.Il se souvient de sonenfance, sabelle enfance.He remembers his childhood, his beautiful childhood.MaYoutubeuse préférée est Natoo.My favourite (female) Youtuber is Natoo.C'est monhypothèse. - Oui, tamauvaise hypothèse !That's my hypothesis. - Yes, your bad hypothesis!C'est tonamie ? - Non, c'est mapetite amie.She is your friend? - No, she is my girlfriend.