外部 がいぶ寄生 きせいじゃありませんでした
ga ibukiseija arimasendeshita

Noun
Desu Copula
no-Adjective

The polite, past negative form of 外部寄生

1. Was not an external parasite.; Was not a parasite (external).

Past/Perfective
Negative
Polite
Terminal Form