壊変 かいへん毎分 まいふんじゃありませんでした
kaie mmaifunja arimasendeshita

Noun
Desu Copula

The polite, past negative form of 壊変毎分

1. It wasn't decaying per minute.; It wasn't deteriorating every minute.

Past/Perfective
Negative
Polite
Terminal Form
Physics