米粒 こめつぶ うま やしじゃありませんでした
kometsubu umakoyashija arimasendeshita

Noun
Desu Copula

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

1. It was not fattening rice grains.; It wasn't a waste of rice.

Past/Perfective
Negative
Polite
Terminal Form