ポンコツじゃなかったです
ponkotsujanakattadesu

Noun
Desu Copula
na-Adjective
no-Adjective

The polite, past negative form of ポンコツ

1. Wasn't a klutz.; Wasn't unreliable.; Wasn't broken/faulty.

Past/Perfective
Negative
Polite
Casual Register