regulásemos

first-person form-of imperfect plural subjunctive

regularの一人称複数未完了接続法

English Meaning

first-person plural imperfect subjunctive of regular

Si creyéramos que era indispensable, regulásemos el tráfico de la ciudad para evitar accidentes.

もしそれが不可欠だと信じたなら、事故を防ぐために市内の交通を規制したでしょう.

If we believed it was essential, we would regulate the city's traffic to avoid accidents.