連用 れんよう修飾 しゅうしょく じゃないです
ren'yōshūshokugojanaidesu

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 連用修飾語

1. It's not a serial modifier.; It isn't a modifying phrase.

Negative
Polite
Casual Register
Linguistics