真剣 しんけん白刃 はくじん りじゃありませんでした
shinken hakujintorijārimasendeshita

Noun
Desu Copula

The polite, past negative form of 真剣白刃取り

1. Was not taking a sword seriously.; Was not disarming with a bare blade.

Past/Perfective
Negative
Polite
Terminal Form