最大 さいだい節約 せつやく ほうじゃなかったです
saidaisetsuyakuhōjanakattadesu

Noun
Desu Copula

The polite, past negative form of 最大節約法

1. Wasn't the greatest savings method.; Wasn't the most economical way.

Past/Perfective
Negative
Polite
Casual Register
Biology