外部 がいぶ寄生 きせいじゃなかったです
gaibukiseijanakattadesu

Noun
Desu Copula
no-Adjective

The polite, past negative form of 外部寄生

1. Wasn't an external parasite.; Wasn't externally parasitic.

Past/Perfective
Negative
Polite
Casual Register