門前 もんぜん きよし自摸 つも ではありません
monzen kiyoshitsumowadewārimasen

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 門前清自摸和

1. It is not a clean game with self-drawn and waiting tiles.; It is not a fair game.

Negative
Polite
Formal Register
Mahjong