三秋 さんしゅう おもいじゃありませんでした
sanshūno omoija arimasendeshita

Noun
Desu Copula

The polite, past negative form of 三秋の思い

1. It wasn't a fleeting thought.; It wasn't a momentary fancy.; It wasn't just a whim.

Past/Perfective
Negative
Polite
Terminal Form