交通 こうつう機動 きどう たいではありませんでした
kō tsūkidōtaidewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 交通機動隊

1. Was not a traffic mobile unit.; Was not part of the traffic police.

Past/Perfective
Negative
Polite
Formal Register