ゴミむしじゃありませんでした
ゴミ虫じゃありませんでした
gomi mushija arimasendeshita

Noun
Desu Copula

The polite, past negative form of ごみむし

1. Was not a bug.; Was not vermin.

Past/Perfective
Negative
Polite
Terminal Form
Usually Written in Kana