Bonjour
<u><em>The possessive adjectives agree with the following noun in French</em></u>
1- son appareil photo <em>(masc. sing.)</em>
2- ton ordinateur<em> (masc. sing.)</em>
3- mes parents <em>(plural)</em>
4- leur parapluie <em>(masc. sing.)</em>
5- sa rubrique société <em>(fem. sing.)</em>
6- mon opinion<em> (fem. sing. + word beginning with a vowel = "mon" instead of "ma")</em>
7- Vos amis <em>(plural)</em>
8- son film <em>(masc. sing.)</em>
9- notre documentaire <em>(masc. sing.)</em>
10- ta petit<u>e</u>-ami<u>e</u> <em>(fem. sing.) OR </em>ton peti<u>t</u>-am<u>i</u> <em>(masc. sing.) ... petit-amie isn't correct</em>
11- Tes cours <em>(plural familiar)</em>
12- Ses sous-titres <em>(plural)</em>
13- Votre voisin <em>(masc. sing. formal)</em>
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- plural possessive adjectives are both masc. and feminine.
- "ma, ta, sa" become "mon, ton, son" in front of a feminine noun beginning with a vowel = ton orange, mon amie, son école ....;
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hope this helps ☺☺☺