漢字かんじ仮名交かなまじりぶんじゃないです
kanjika namajiri bunjanaidesu

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 漢字仮名交じり文

1. It's not a mixed kanji/kana text.; It isn't a kanji-kana mixed sentence.

Negative
Polite
Casual Register