JMdict: 2785230

せねば

1. [exp] ought to do; have to do; must do; feel obliged to

Words often seen with this one: (experimental feature)

ならん (101), なんとか (27), この (23), なる (20), 私 (19), こと (17), なんで (13), しっかり (13), その (11), 報告 (10)