ぎょう変格へんかく活用かつようではありませんでした
kagyōhenkakukatsuyōdewārimasendeshita

Noun
Desu Copula

The polite, past negative form of カ行変格活用

1. Was not a consonant-row irregular verb.; Was not of the consonant-row irregular conjugation.

Past/Perfective
Negative
Polite
Formal Register
Linguistics