こまじゃありませんでした
駒鶇じゃありませんでした
koma jārimasendeshita

Noun
Desu Copula

The polite, past negative form of こまつぐみ

1. Was not a thrush.; Was not a speckled thrush.

Past/Perfective
Negative
Polite
Terminal Form
Usually Written in Kana