avoir + à + infinitif/avoir + de + infinitif

Bonjour à tous. C'est la première fois que je mets quelque choses dans ce forum.

J'ai eu un livre de grammaire française qui expliquait très bien quand on utilise avoir à + infinitif ou on utilise avoir de + infinitif. Malheureusement, il y a eu un incendie où j'ai perdu tous mes livres.
Merci pour votre aide.

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Permalink Reply by Neil Coffey on October 8, 2010 at 4:03pm

I'm struggling to think of a case in French where you'd use de before the infinitive with avoir-- as far as I can think, to all intents and purposes it would be à.

Can you remember roughly what kind of cases you were thinking of?

It's true that "on the fringes" of the language, you'll accidentally get cases like:

J'ai des courses à faire, ainsi que d'aller à la banque

But this is basically because ainsi que (="and", "as well as") tends to trigger de before a following infinitive, irrespective of what you'd logically expect. It would be unfair to say that this was really a case of avoir de....