non sarei riuscito a

I wouldn't have been able to

→ non
phrase Rare #43,621
I wouldn't have been able to Followed by an infinitive verb. The speaker is male; a female speaker would say “non sarei riuscita a.”
IT: Senza la mappa, non sarei riuscito a trovare la casa.
EN: Without the map, I wouldn't have been able to find the house.

Senza il tuo aiuto, non sarei riuscito a finire il lavoro.

Without your help, I wouldn't have been able to finish the work.

Non sarei riuscito a fare questo senza di lei.

I wouldn’t have been able to do this without her.

Altrimenti non sarei riuscito a seguirla.

Otherwise, I wouldn’t have been able to follow her.

— Psyco (1960)

Senza il suo aiuto, non sarei riuscito a finire il lavoro.

Without his help, I wouldn’t have been able to finish the work.