連合れんごうこくぐん最高さいこう司令しれいかんそう司令しれいじゃなかったです
rengō koku gun saikō shi reikan sō shire ibujanakattadesu

Noun
Desu Copula

The polite, past negative form of 連合国軍最高司令官総司令部

1. Was not the Supreme Commander of the Allied Forces General Headquarters. ; ; Wasn't the Supreme Commander of the Allied Forces General Headquarters.

Past/Perfective
Negative
Polite
Casual Register