米粒 こめつぶ うま やしではありませんでした
kometsubūma koyashidewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 米粒馬肥やし

1. Was not a plump rice grain horse.; Was not fattening a rice grain horse.

Past/Perfective
Negative
Polite
Formal Register