single
LEUR ou LEURS
LEUR is a complement pronoun placed near the verb. It is unchanging. It is the plural of "him". Example : THEIR - HIM complementary pronouns Elle a téléphoné à ses parents. ► Elle leur a téléphoné. Elle a téléphoné à sa sœur. ► Elle lui a téléphoné. Téléphone à tes parents ! ► Téléphone-leur ! Téléphone à ta sœur ! ► Téléphone-lui !  C’est son chien (it’s his/her dog): the dog belongs to one person only. We use “son”, the masculine, because the word “chien” is masculine in French. C’est sa voiture (it’s his/her car): the car belongs to one person only. We use “sa”, the feminine, because the word “voiture” is feminine in French. C’est leur chien (it’s their dog): the dog belongs to two or more people. C’est leur voiture (it’s their car): the car belongs to two or more people. LEUR which is a possessive adjective placed before a noun phrase. It can be singular or plural. It agrees with the noun it accompanies. It takes an "S" when placed before a plural noun. Example : LEUR - LEURS possessive adjectives Laurent et Hélène ont une fille. ► C'est leur fille. Pierre et Céline ont un fils et une fille. ► Ce sont leurs enfants. Ce sont leurs chiens (those are their dogs) : there are several dogs that belong to two or more people Ce sont leurs voitures (they are their cars) : there are several cars that belong to two or more people Conclusion: LEUR = personal pronoun placed before a verb does not take an "S". LEUR = Possessive adjective placed before a singular noun does not take an "S". LEURS = Possessive adjective placed before a plural noun takes an "S"