ちょう周期 しゅうき彗星 すいせいじゃありませんでした
chōshūkisui seija arimasendeshita

Noun
Desu Copula

The polite, past negative form of 長周期彗星

1. Was not a long-period comet.; It was not a long-period comet.

Past/Perfective
Negative
Polite
Terminal Form
Astronomy