おう待宵 まつよい そうではありませんでした
ōma tsuyoi sōdewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 大待宵草

1. Was not a large evening primrose.; Was not a large, late-blooming plant.

Past/Perfective
Negative
Polite
Formal Register