濾過 ろか性病 せいびょう原体 げんたいじゃありませんでした
rokaseibyōgentaijārimasendeshita

Noun
Desu Copula

The polite, past negative form of 濾過性病原体

1. Was not a filtered pathogen.; Was not a screened pathogen.

Past/Perfective
Negative
Polite
Terminal Form