Ce sont de bons presse-agrumes !

From Lesson 440:Plural compound nouns·French

Questions & Answers about Ce sont de bons presse-agrumes !

Why doesn't presse-agrumes change its spelling in the plural here?
Presse-agrumes is a compound noun made of a verb (presse) and a noun (agrumes). In French compound nouns, the verb part never takes a plural -s. The noun part usually does take an -s in the plural, but agrumes already has an -s in its singular form because even a single juicer presses multiple citrus fruits! Therefore, the singular and plural forms are completely identical: un presse-agrumes and des presse-agrumes.
How do I recognize that presse is a verb and shouldn't get an -s?
Think about what the object does. A presse-agrumes is a tool that presses (presser) citrus. Many French tools and household items are formed using this verb-plus-noun structure, such as a porte-manteau (coat rack) or grille-pain (toaster). Because the first word describes the action the object performs, you know it is a verb and must remain invariable.
Why is it de bons instead of des bons?
When a plural adjective (like bons) comes directly before a plural noun, the plural indefinite article des changes to de. If the adjective were placed after the noun, the article would stay des (for example, des presse-agrumes exceptionnels).
Why does the sentence start with Ce sont instead of Ils sont?
You use c'est or ce sont when introducing or identifying something using a modified noun (a noun preceded by a determiner, like de bons presse-agrumes). You would use Ils sont if you were describing the juicers with an adjective alone, such as Ils sont bons ! (They are good!).

Learn Ce sont de bons presse-agrumes and more in French

All course content and exercises are completely free — no paywalls, no trial periods, no signup needed.

  • Practice with interactive exercises
  • Track your progress with spaced repetition
  • Learn at your own pace — completely free