the day before yesterday
Avant-hier tu as impressionné tout le monde, mais moi, je te connaissais déjà.
The day before yesterday, you impressed everyone, but I already knew you.
Did you come the day before yesterday?
Il est rentré de France avant-hier.
He returned from France the day before yesterday.
J'ai reçu votre lettre avant-hier.
I received your letter the day before yesterday.
Après ce qui s'est passé avant-hier ?
After what happened the day before yesterday?
— Faute d'amour (2017)
L'accident s'est produit avant-hier.
The accident happened the day before yesterday.
Avant-hier, j'aurais juré avoir vu une photo bouger.
The day before yesterday, I could have sworn I saw a photograph move.
— Harry Potter et le Prince de sang-mêlé (2009)
Tom avait son anniversaire avant-hier.
Tom had his birthday the day before yesterday.
La dernière fois que Tom m'a parlé, c'était avant-hier.
The last time Tom spoke to me was the day before yesterday.
Il ignorait peut-être que Markinson s'est suicidé avant-hier.
He might not have known that Markinson committed suicide the day before yesterday.
— Des hommes d'honneur (1992)