がこうそうきんじゃないです
鵞口瘡菌じゃないです
gakōsōkinjanaidesu

Noun
Desu Copula
Negation Auxiliary

The polite negative form of がこうそうきん

1. It's not canker sore.; It's not aphthous ulcer.

Negative
Polite
Casual Register
Usually Written in Kana