月掛 つきが貯金 ちょきんではありませんでした
tsukigakechokindewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 月掛け貯金

1. Was not a monthly savings plan.; Was not a fixed-amount monthly deposit.

Past/Perfective
Negative
Polite
Formal Register