周期 しゅうき彗星 すいせいじゃありませんでした
shūki sui seijārimasendeshita

Noun
Desu Copula

The polite, past negative form of 周期彗星

1. Was not a periodic comet.; Was not a repeating comet.

Past/Perfective
Negative
Polite
Terminal Form
Astronomy