動作 どうさ有効 ゆうこう期間 きかんじゃなかったです
dōsayūkōkikanjanakattadesu

Noun
Desu Copula

The polite, past negative form of 動作有効期間

1. Wasn't effective.; Didn't last.; Wasn't valid.

Past/Perfective
Negative
Polite
Casual Register
Computing