せんうみつばめでわありません
潜海燕ではありません
sen'umitsubamedewārimasen

Noun
Desu Copula
Negation Auxiliary

The polite negative form of もぐりうみつばめ

1. Is not a hydrobatid.; Is not a storm petrel.

Negative
Polite
Formal Register
Usually Written in Kana