姿勢 しせい制御 せいぎょじゃなかったです
shiseiseigyojanakattadesu

Noun
Desu Copula

The polite, past negative form of 姿勢制御

1. Wasn't controlling posture.; Didn't maintain posture.

Past/Perfective
Negative
Polite
Casual Register
Physiology
Engineering