拡張 かくちょう しん字体 じたいじゃなかったです
kakuchō shinjitaijanakattadesu

Noun
Desu Copula

The polite, past negative form of 拡張新字体

1. Wasn't an expanded new character.; Wasn't an expanded new form.

Past/Perfective
Negative
Polite
Casual Register