くろ細大 さいだい蜥蜴 とかげではありませんでした
kurosaidaitokagedewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 黒細大蜥蜴

1. Was not a black, slender, large lizard.

Past/Perfective
Negative
Polite
Formal Register