宇宙 うちゅう生物 せいぶつ がくじゃありませんでした
uchūseibutsugakujārimasendeshita

Noun
Desu Copula

The polite, past negative form of 宇宙生物学

1. Was not astrobiology.; Was not a study of extraterrestrial life.

Past/Perfective
Negative
Polite
Terminal Form