Why does tous les mois mean every month?

Rebecca L.C1Kwiziq community member

Why does tous les mois mean every month?

According to the above rule, each/every month should only be chaque mois, since "chaque" goes with a singular noun, and "tous les" goes with a plural noun.  How is "mois" plural?  Just because it has an "s" at the end?  Very confusing.  Please help!

Asked 5 months ago
Maarten K.C1 Kwiziq Q&A super contributor Correct answer

Rebecca, 

‘ mois ‘ is invariable in spelling whether singular or plural. 

 Most French nouns take an -s in the plural unless they already end in -s, -x, -z

 https://www.wordreference.com/fren/mois

Why does tous les mois mean every month?

According to the above rule, each/every month should only be chaque mois, since "chaque" goes with a singular noun, and "tous les" goes with a plural noun.  How is "mois" plural?  Just because it has an "s" at the end?  Very confusing.  Please help!

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