had I known

si j’avais su

→ have
phrase Rare #27,462
si j’avais su Forme inversée et plus soutenue de « if I had known », souvent suivie d’une conséquence au conditionnel passé.
EN: Had I known you were coming, I would have made dinner.
FR: Si j’avais su que tu venais, j’aurais préparé le dîner.

Had I known your telephone number, I would have called you.

Si j’avais connu ton numéro de téléphone, je t’aurais appelé.

Had I known her address, I would have written to her.

Si j’avais connu son adresse, je lui aurais écrit.

Had I known that, I wouldn't have said such a thing to her.

Si j’avais su cela, je ne lui aurais pas dit une chose pareille.

Had I known there'll be so much of luggage, I would've got a mini bus.

Si j’avais su qu’il y aurait autant de bagages, j’aurais pris un minibus.

— Piku (2015)

Had I known it, I would have told you.

Si je l'avais su, je vous l'aurais dit.

Had I known, I would have gotten something more fancy!

Si j'avais su, j'aurais pris quelque chose de plus chic !

— Mommy (2014)

Had I known you'd be here, I wouldn't have come.

Si j’avais su que tu serais là, je ne serais pas venu(e).

Had I known it, I'd have told you about that.

Si je l’avais su, je vous en aurais parlé.

Had I known that, I wouldn't have come.

Si j'avais su ça, je ne serais pas venu(e).