拡張 かくちょう しん字体 じたいじゃありませんでした
kakuchō shinjitaija arimasendeshita

Noun
Desu Copula

The polite, past negative form of 拡張新字体

1. Was not the expanded new character form.; Was not a new, expanded character.

Past/Perfective
Negative
Polite
Terminal Form