夜間 やかん外出 がいしゅつ禁止 きんし れいであれば
yakanga ishutsukinshireideareba

Noun
Da Copula

The "-eba" conditional form ("if/when…") of 夜間外出禁止令

1. If there were a nighttime curfew order; If a nighttime curfew order existed

Ba Conditional