- 1. [exp, v5s] to make absolutely sure (that all is right); to use every means; to take all possible measures
Conjugation — Verb (godan-su)
| Dictionary form | ばんぜんをきす | (banzenwokisu) |
| Polite | ばんぜんをきします | (banzenwokishimasu) |
| Past, plain | ばんぜんをきした | (banzenwokishita) |
| Past, polite | ばんぜんをきしました | (banzenwokishimashita) |
| Negative, plain | ばんぜんをきさない | (banzenwokisanai) |
| Negative, polite | ばんぜんをきしません | (banzenwokishimasen) |
| Past negative, plain | ばんぜんをきさなかった | (banzenwokisanakatta) |
| Past negative, polite | ばんぜんをきしませんでした | (banzenwokishimasendeshita) |
| Te-form | ばんぜんをきして | (banzenwokishite) |
| Potential | ばんぜんをきせる | (banzenwokiseru) |
| Volitional | ばんぜんをきそう | (banzenwokisou) |
| Conditional (―ba) | ばんぜんをきせば | (banzenwokiseba) |
| Passive | ばんぜんをきされる | (banzenwokisareru) |
| Causative | ばんぜんをきさせる | (banzenwokisaseru) |
| Imperative | ばんぜんをきせ | (banzenwokise) |