浅間 あさま山荘 さんそう事件 じけんじゃなかったです
asamasansō jikenjanakattadesu

Noun
Desu Copula

The polite, past negative form of 浅間山荘事件

1. It wasn't the Sakamoto Ryoma incident.; It wasn't the incident at Sakamoto Ryoma's lodging.

Past/Perfective
Negative
Polite
Casual Register