くろさいだいとかげじゃないです
黒細大蜥蜴じゃないです
kurosaidaitokagejanaidesu

Noun
Desu Copula
Negation Auxiliary

The polite negative form of くろほそおおとかげ

1. It's not a black, thin, large lizard.

Negative
Polite
Casual Register
Usually Written in Kana