devo aver

I must have

→ dovere
phrase Rare #27,110
I must have Used to express a conclusion or assumption about something that happened in the past. Before a past participle, “aver” is a shortened form of “avere.”
IT: Devo aver lasciato le chiavi in macchina.
EN: I must have left the keys in the car.

Lo devo aver perso da qualche parte.

I must have lost it somewhere.

— Loveless (2017)

Devo aver commesso un errore.

I must have made a mistake.

Devo aver perso conoscenza.

I must have passed out.

— Memorie di un assassino (2003)

Devo aver sbagliato numero.

I must have dialed the wrong number.

— Lussuria - Seduzione e tradimento (2007)

Ero in ritardo, devo aver dormito.

I was late; I must have overslept.

— Mademoiselle (2016)

Devo aver mancato il bidone della spazzatura.

I must have missed the garbage can.

— Material Love (2025)

Devo aver digitato male il numero.

I must have entered the number incorrectly.

Devo aver perso i sensi a quel punto.

I must have lost consciousness at that point.

— Rashomon (1950)

Devo aver scordato il suo nome.

I must have forgotten his name.

— Good Bye, Lenin! (2003)