しまふくろうじゃなかったです
島梟じゃなかったです
shimafukurōjanakattadesu

Noun
Desu Copula

The polite, past negative form of しまふくろう

1. Was not an owl on the island.; Wasn't an island owl.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana