主辞 しゅじ素性 そせい規約 きやくじゃなかったです
shujisoseikiyakujanakattadesu

Noun
Desu Copula

The polite, past negative form of 主辞素性規約

1. Wasn't the basic principle.; Wasn't the fundamental nature.

Past/Perfective
Negative
Polite
Casual Register
Linguistics