せみほうぼうじゃなかったです
蝉魴鮄じゃなかったです
semi hōbōjanakattadesu

Noun
Desu Copula

The polite, past negative form of せみほうぼう

1. Wasn't a hagfish.; Wasn't a mudskipper.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana