smettessi di

stopped

→ smettere
phrase Rare #43,678
stopped Used with an infinitive to mean “stopped doing something.” It is the imperfect subjunctive form of smettere, commonly used in wishes, requests, and hypothetical statements.
IT: Vorrei che smettessi di preoccuparti così tanto.
EN: I wish you would stop worrying so much.

Forse sarebbe meglio che smettessi di cercarlo.

Perhaps it would be better if you stopped looking for him.

— A Taxi Driver (2017)

Io vorrei che tu la smettessi di lamentarti.

I wish you would stop complaining.

Sarebbe bello se non smettessi di lottare.

It would be nice if you didn't stop fighting.

— The Big Sick - Il matrimonio si può evitare... l'amore no (2017)

Vorrei che la smettessi di lamentarti per ogni piccola cosa.

I wish you would stop complaining about every little thing.