かくしがまえじゃなかったです
匸構えじゃなかったです
kakushiga maejanakattadesu

Noun
Desu Copula

The polite, past negative form of かくしがまえ

1. Didn't intend to.; Didn't plan to.; Didn't have the idea.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana