脊椎 せきつい動物 どうぶつじゃなかったです
muse kitsui dōbutsujanakattadesu

Noun
Desu Copula

The polite, past negative form of 無脊椎動物

1. Was not an invertebrate.; Wasn't a spineless animal.

Past/Perfective
Negative
Polite
Casual Register
Zoology