うみつばめじゃなかったです
海燕じゃなかったです
umitsubamejanakattadesu

Noun
Desu Copula

The polite, past negative form of うみつばめ

1. Wasn't a petrel.; Wasn't the petrel.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana