まく うち弁当 べんとうではありませんでした
makunōchibentōdewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 幕の内弁当

1. It was not a bento box with a variety of dishes.; It wasn't the set meal.

Past/Perfective
Negative
Polite
Formal Register