大和 やまとゴキブリじゃありませんでした
yamatogokiburijārimasendeshita

Noun
Desu Copula

The polite, past negative form of 大和ゴキブリ

1. Was not a Yamato cockroach.; Was not a large cockroach.

Past/Perfective
Negative
Polite
Terminal Form