訓民 くんみん正音 せいおんではありませんでした
kummin seiondewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 訓民正音

1. Was not Hunminjeongeum.; Was not the Proper Sounds for the Instruction of the People.

Past/Perfective
Negative
Polite
Formal Register