よんウェイフラッシャーじゃありませんでした
yonweifurasshājārimasendeshita

Noun
Desu Copula

The polite, past negative form of 4ウェイフラッシャー

1. Was not a four-way flasher.; Was not a four-way hazard light.

Past/Perfective
Negative
Polite
Terminal Form