Learn French: C'est un fol espoir, mais nous en parlons souvent. - It is a foolish hope, but we often talk about it.

The masculine adjective fou changes to fol because it comes directly before a singular noun that starts with a vowel sound (espoir). This mutation (just like beau changing to bel) makes the pronunciation smoother.

Doesn't the adjective fou usually come after the noun?

Yes, fou typically follows the noun for literal descriptions (like un projet fou). However, placing it before the noun gives it a subjective, emotional, or figurative emphasis. Un fol espoir is actually a very common set phrase in French for a wild or foolish hope.

Why do we use the pronoun en in the second clause?

The verb parler requires the preposition de when you talk about something (parler d'un espoir). The pronoun en replaces de plus a thing or idea, which is why nous en parlons translates to 'we talk about it'.

Why does the sentence use C'est rather than Il est?