地球 ちきゅう がた惑星 わくせいじゃありませんでした
chikyūgata wakuseijārimasendeshita

Noun
Desu Copula

The polite, past negative form of 地球型惑星

1. Was not a terrestrial planet.; It was not a terrestrial planet.

Past/Perfective
Negative
Polite
Terminal Form
Astronomy