薬剤 やくざい抵抗 ていこう せいじゃありませんでした
yakuzaiteikō seija arimasendeshita

Noun
Desu Copula

The polite, past negative form of 薬剤抵抗性

1. Was not drug-resistant.; Was not medication-resistant.

Past/Perfective
Negative
Polite
Terminal Form