壊変 かいへん毎秒 まいびょうじゃありませんでした
kaie mmai byōjārimasendeshita

Noun
Desu Copula

The polite, past negative form of 壊変毎秒

1. Was not decaying per second.; Was not deteriorating every second.

Past/Perfective
Negative
Polite
Terminal Form
Physics