特別 とくべつ捜査 そうさ本部 ほんぶではありませんでした
tokubetsu sōsa hombudewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 特別捜査本部

1. Was not a special investigation headquarters.; Was not part of the special investigation headquarters.

Past/Perfective
Negative
Polite
Formal Register