帝国 ていこく軍人 ぐんじんではありませんでした
teikokugunjindewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 帝国軍人

1. Was not an imperial soldier.; Was not a member of the imperial army.

Past/Perfective
Negative
Polite
Formal Register