時効 じこう硬化 こうかじゃなかったです
jikōkōkajanakattadesu

Noun
Desu Copula

The polite, past negative form of 時効硬化

1. Wasn't hardened by statute of limitations.; Wasn't solidified due to time limit.

Past/Perfective
Negative
Polite
Casual Register
Chemistry