変更 へんこう可能 かのうじゃなかったです
henkōkanōjanakattadesu

Noun
Desu Copula
na-Adjective

The polite, past negative form of 変更可能

1. Wasn't changeable.; Couldn't be changed.; Wasn't possible to change.

Past/Perfective
Negative
Polite
Casual Register
Computing