海軍 かいぐん へい学校 がっこうじゃなかったです
kaigun'e i gakkōjanakattadesu

Noun
Desu Copula

The polite, past negative form of 海軍兵学校

1. Was not a naval academy student.; Wasn't in the naval academy.

Past/Perfective
Negative
Polite
Casual Register