急性 きゅうせい中毒 ちゅうどくではありませんでした
kyūseichūdokudewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 急性中毒

1. Was not acute poisoning.; Was not an acute intoxication.

Past/Perfective
Negative
Polite
Formal Register