蛍光 けいこう物質 ぶっしつじゃなかったです
keikōbusshitsujanakattadesu

Noun
Desu Copula

The polite, past negative form of 蛍光物質

1. Wasn't fluorescent.; Wasn't a fluorescent substance.

Past/Perfective
Negative
Polite
Casual Register