つまはじきじゃありませんでした
爪弾きじゃありませんでした
tsumahajikijārimasendeshita

Noun
Desu Copula

The polite, past negative form of つまはじき

1. Was not picked.; Was not strummed.; Was not played (on a stringed instrument).

Past/Perfective
Negative
Polite
Terminal Form
Usually Written in Kana