the day before

I lost the camera I had bought the day before.

J’ai perdu l’appareil photo que j’avais acheté la veille.

I met her the day before.

Je l’ai rencontrée la veille.

I found the book which I had lost the day before.

J’ai retrouvé le livre que j’avais perdu la veille.

Don't substitute the day before for the next day.

Ne remplace pas le lendemain par la veille.

— Anatomy of a Fall (2023)

It was his birthday the day before.

C'était son anniversaire la veille.

— Article 15 (2019)

Or the day before the day before yesterday?

Ou l'avant-veille ?

— Loveless (2017)

He lost the watch he'd bought the day before.

Il a perdu la montre qu’il avait achetée la veille.

The day before Jimmy Boy's party.

La veille de la fête de Jimmy Boy.

— Mike & Nick & Nick & Alice (2026)

He lost the watch which he had bought the day before.

Il a perdu la montre qu’il avait achetée la veille.

Did you see Miss Doran on the day before the wedding?

Avez-vous vu Mlle Doran la veille du mariage ?