A possessive adjective is a tool word that indicates possession. It is put before a noun and agrees in gender and number. The plural form is the same for masculine and feminine.
If I possess something, I use : mon, ma, mes.
Mon chat. (My cat) → Chat is a masculine word.Ma voiture. (My car) → Voiture is a feminine word.Mes copains. (My friends) → In this case Copains is at the plural form (therefore, it takes a silent final -s).If you possess something, I use : ton, ta, tes.
Ton chien. (Your dog)Ta maison. (Your house)Tes Parents. (Your parents)If he or she possesses something, I use : son, sa, ses.
Son lapin. (His/her rabbit)Sa chambre. (His/her bedroom)Ses voisins. (His/her neighbours) * Note that in French, the possessive adjective changes according to the possessor's gender and number, while in English it changes according to the possessed's gender.Be careful ! With a feminine noun beginning by a vowel or a silent h, we should use mon, ton, son instead of ma, ta, sa. Why? In order to respect a vowel-consonnant-vowel rhythm...
Mon amie. (My friend) → as amie has an -e, it is feminine. However, we use mon in order to avoid a hiatusTon alarme. (Your alarm)Son hésitation. (His/her hesitation)If we possess something, I use : notre, nos.
Notre armoire. (Our closet)Nos vêtements. (Our dresses)If you all possess something, I use : votre, vos.
Votre tables. (Our table)vos couverts. (Our cutleries)If They possess something, I use : leur, leurs.
Leur bureau. Leurs ordinateurs.Note that the plural's possessive adjectives agree in number but not in gender.