なぎいかだじゃなかったです
梛筏じゃなかったです
nagiikadajanakattadesu

Noun
Desu Copula

The polite, past negative form of なぎいかだ

1. Wasn't a raft.; Wasn't a small raft.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana