Why use notre and not nos

Bonjour Andrew ! Unfortunately here I cannot see the example you're referring to, but here's the rule for using "notre" vs "nos" : - if the noun following is plural, "our dogS", then you use "nos" -> "nos chiens" - if the noun following is singular, "our cat", then you use "notre" -> "notre chat" Here's a link to the related lesson: Notre, nos, votre, vos, leur, leurs = our, your, their (possessive adjectives) I hope that's helpful! À bientôt !