時間 じかん生物 せいぶつ がくじゃなかったです
jikanseibutsugakujanakattadesu

Noun
Desu Copula
no-Adjective

The polite, past negative form of 時間生物学

1. Was not chronobiology.; Wasn't studying chronobiology.

Past/Perfective
Negative
Polite
Casual Register