塩素 えんそガス中毒 ちゅうどくじゃありませんでした
ensogasuchūdokujārimasendeshita

Noun
Desu Copula

The polite, past negative form of 塩素ガス中毒

1. Was not chlorine gas poisoning.; Was not a case of chlorine gas poisoning.

Past/Perfective
Negative
Polite
Terminal Form