era diventato

had become

→ essere
phrase Rare #40,739
had become The masculine singular form of the past perfect of diventare, used when the subject had changed into or developed into something. With a feminine singular subject, use era diventata.
IT: Dopo molti anni, il piccolo villaggio era diventato una città.
EN: After many years, the small village had become a city.

Era diventato normale.

It had become normal.

— Quei bravi ragazzi (1990)

Quando l'ho rivisto, era diventato alcolizzato.

When I saw him again, he had become an alcoholic.

— Amores perros (2000)

Il circuito era diventato un tunnel e io non facevo altro che andare avanti.

The circuit had become a tunnel and I could only keep going.

— Senna (2010)

Era diventato un peso, e voleva scrivere.

It had become a burden, and he wanted to write.

— Anatomia di una caduta (2023)