ほそ くび ごもく むしではありませんでした
hosoku bi gomoku mushidewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 細頸芥虫

1. Was not a slender-necked weevil.; Was not a small, insignificant thing.

Past/Perfective
Negative
Polite
Formal Register