銀河 ぎんが系外 けいがい星雲 せいうんじゃありませんでした
gingakeiga isei unja arimasendeshita

Noun
Desu Copula

The polite, past negative form of 銀河系外星雲

1. Was not a galactic nebula.; Wasn't a galactic nebula.

Past/Perfective
Negative
Polite
Terminal Form
Astronomy