Irregular nouns in the plural form

Nouns ending in - al change to - aux in the plural, eg:

  • un journal (a newspaper) → des journaux (newspapers)

Nouns ending in -eu, -eau or -ou change to -eux, -eaux or -oux in the plural, eg:

  • un jeu (game) → des jeux (games)
  • un gâteau (cake) → des gâteaux (cakes)
  • un bijou (jewel) → des bijoux (jewels)

Nouns that already end in -s,-x or -z in the singular form don't change in the plural, eg:

  • un casdes cas
  • un choixdes choix
  • un gazdes gaz

Also watch out for some irregular plurals:

  • un œil des yeux
  • MonsieurMessieurs
  • MadameMesdames
  • MademoiselleMesdemoiselles
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