しょう せい硫酸 りゅうさんじゃありませんでした
shōseiryūsanjārimasendeshita

Noun
Desu Copula

The polite, past negative form of 焦性硫酸

1. Was not concentrated sulfuric acid.; Was not fuming sulfuric acid.

Past/Perfective
Negative
Polite
Terminal Form