だい本営 ほんえう発表 はっぴょうじゃありませんでした
daihon'euhappyōjārimasendeshita

Noun
Desu Copula

The polite, past negative form of 大本営発表

1. It wasn't announced by the Imperial General Headquarters.; It wasn't an Imperial General Headquarters announcement.

Past/Perfective
Negative
Polite
Terminal Form