時効 じこう硬化 こうかじゃありませんでした
jikōkōkajārimasendeshita

Noun
Desu Copula

The polite, past negative form of 時効硬化

1. Was not hardened by statute of limitations.; Was not solidified due to expiration.

Past/Perfective
Negative
Polite
Terminal Form
Chemistry