いねねむしじゃなかったです
稲根喰葉虫じゃなかったです
ine nemushijanakattadesu

Noun
Desu Copula

The polite, past negative form of いねねくいはむし

1. Wasn't a rice root-eating insect.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana