草薙 くさなぎ けんではありませんでした
kusanagino kendewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 草薙の剣

1. Was not the Kusanagi-no-Tsurugi.; Was not the Sword of Kusanagi.

Past/Perfective
Negative
Polite
Formal Register