銀河 ぎんが系内 けいない星雲 せいうんじゃありませんでした
gingakei nai sei unja arimasendeshita

Noun
Desu Copula

The polite, past negative form of 銀河系内星雲

1. Was not a nebula within the galaxy.; Wasn't a galactic nebula.

Past/Perfective
Negative
Polite
Terminal Form
Astronomy