罰する (bassuru) conjugation
to punish, to penalize
罰する (ばっする, bassuru) is an irregular verb. Only する and 来る are truly irregular, and every learner meets them in week one. Every form below is tappable — hear it, then say it back.
Conjugation table
| Form | Plain (casual) | Polite (~ます) | When you use it |
|---|---|---|---|
| Dictionary / plain | 罰する bassuru | 罰します basshimasu | The form you look up. Also the casual present and future. |
| Plain negative | 罰しない basshinai | 罰しません basshimasen | “doesn’t / won’t”. From here it conjugates like an i-adjective. |
| Plain past | 罰した basshita | 罰しました basshimashita | The casual past — same ending as the te-form, with た/だ. |
| Plain past negative | 罰しなかった basshinakatta | 罰しませんでした basshimasendeshita | “didn’t”. The negative past, still i-adjective-shaped. |
| Te-form | 罰して basshite | — | The connector: requests, linking clauses, ~ている. |
| Progressive (~ている) | 罰している basshiteiru | 罰しています basshiteimasu | “is ~ing”, or an ongoing resulting state. |
| Desire (~たい) | 罰したい basshitai | 罰したいです basshitaidesu | “want to ~”. Behaves as an i-adjective. |
| Volitional | 罰しよう basshiyou | 罰しましょう basshimashou | “let’s ~” / “I think I’ll ~”. |
| Potential | 罰できる baddekiru | 罰できます baddekimasu | “can ~”. What you could do; the object often takes が. |
| Passive | 罰される bassareru | 罰されます bassaremasu | “is ~ed”. Also the honorific and the suffering passive. |
| Causative | 罰させる bassaseru | 罰させます bassasemasu | Make or let someone do it. |
| Causative-passive | 罰させられる bassaserareru | 罰させられます bassaseraremasu | Be made to do it — the long one. |
| Imperative | 罰しろ basshiro | 罰してください basshitekudasai | Blunt order. Use ~てください in real life. |
| Prohibitive | 罰するな bassuruna | — | “don’t!” — dictionary form + な. |
| Conditional (~ば) | 罰すれば bassureba | — | “if ~”. General rules and hypotheticals. |
| Conditional (~たら) | 罰したら basshitara | — | “if / when ~”. The everyday conditional. |
🔊 Tap any Japanese word to hear it spoken.
Why it conjugates this way
Only する and 来る are truly irregular, and every learner meets them in week one.
See the full rules on the verb conjugation guide.