郵便 ゆうびん本局 ほんきょくではありませんでした
yūbinhonkyokudewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 郵便本局

1. Was not a main post office.; Was not the central post office.

Past/Perfective
Negative
Polite
Formal Register