勉強 べんきょう不足 ぶそくじゃありませんでした
benkyōbusokujārimasendeshita

Noun
Desu Copula

The polite, past negative form of 勉強不足

1. Was not lacking in study.; Did not lack preparation.; Was sufficiently prepared.

Past/Perfective
Negative
Polite
Terminal Form