鍵開 かぎあ道具 どうぐじゃなかったです
kagiake dōgujanakattadesu

Noun
Desu Copula

The polite, past negative form of 鍵開け道具

1. Wasn't a key opener.; Wasn't a key-opening tool.

Past/Perfective
Negative
Polite
Casual Register