I am aware that the infinitive of a verb in french is just the word not conjugated. But I noticed a lot of times that à is used in French when with infinitives. For example, when I was in Québec, my host family had a deep fryer. On the box, it said "ready to fry" and the French translation said "Prêt à frire". I know that "prêt" means ready, but mostly I don't understand why the "à" was necessary. "Frire" means "to fry" because it is in infinitive. Isn't the "to" in "to fry" already present within "frire"? I have the à with infinitives many times before, and I'm wondering when it is appropriate to use à with an infinitive.

1 Answer 1


À is a preposition, it is used to introduce the prepositional phrase that serve to complement the sentence. And the rule says that after a preposition the verb must be in the infinitive, whether à or another preposition.

The choice of the preposition depends on what precedes the preposition and not on what comes after.

Prêt à frire.

If you use a verb after (être) prêt then this verb is preceded by à, this à is not part of the infinitive as such, it is part of the verb phrase.

We have a different preposition after different expressions. For example:

(J'ai) envie de partir.
(Je suis) heureux de rester.

Here it's (avoir) envie de, être heureux de that is followed by the infinitive, we don't have à but de.

Here is a related but not similar question: When would one use “à” before a verb?

  • While « j’ai envie à partir » is totally incorrect, « je suis heureux à rester » may be used. Especially if there is a complement : « Je suis heureux à rester assis ». I cannot tell the difference and I'd say there is no difference.
    – Stéphane
    Jul 21, 2016 at 16:28

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