蝸牛 かぎゅう神経 しんけいではありませんでした
kagyūshinkeidewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 蝸牛神経

1. Was not snail nerves.; Was not slow to react.

Past/Perfective
Negative
Polite
Formal Register