気体 きたい反応 はんのう法則 ほうそくじゃありませんでした
kitaihannōno hōsokujārimasendeshita

Noun
Desu Copula

The polite, past negative form of 気体反応の法則

1. It wasn't the law of gaseous reaction.; It wasn't a law of gas reaction.

Past/Perfective
Negative
Polite
Terminal Form