果たす (hatasu) conjugation
to accomplish, to fulfill, to carry out, to achieve
果たす (はたす, hatasu) is a godan verb. Godan verbs change their final kana up and down its column of the kana chart — the a-row for negatives, the i-row before ます, the e-row for potential and ば. 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 | 果たす hatasu | 果たします hatashimasu | The form you look up. Also the casual present and future. |
| Plain negative | 果たさない hatasanai | 果たしません hatashimasen | “doesn’t / won’t”. From here it conjugates like an i-adjective. |
| Plain past | 果たした hatashita | 果たしました hatashimashita | The casual past — same ending as the te-form, with た/だ. |
| Plain past negative | 果たさなかった hatasanakatta | 果たしませんでした hatashimasendeshita | “didn’t”. The negative past, still i-adjective-shaped. |
| Te-form | 果たして hatashite | — | The connector: requests, linking clauses, ~ている. |
| Progressive (~ている) | 果たしている hatashiteiru | 果たしています hatashiteimasu | “is ~ing”, or an ongoing resulting state. |
| Desire (~たい) | 果たしたい hatashitai | 果たしたいです hatashitaidesu | “want to ~”. Behaves as an i-adjective. |
| Volitional | 果たそう hatasou | 果たしましょう hatashimashou | “let’s ~” / “I think I’ll ~”. |
| Potential | 果たせる hataseru | 果たせます hatasemasu | “can ~”. What you could do; the object often takes が. |
| Passive | 果たされる hatasareru | 果たされます hatasaremasu | “is ~ed”. Also the honorific and the suffering passive. |
| Causative | 果たさせる hatasaseru | 果たさせます hatasasemasu | Make or let someone do it. |
| Causative-passive | 果たさせられる hatasaserareru | 果たさせられます hatasaseraremasu | Be made to do it — the long one. |
| Imperative | 果たせ hatase | 果たしてください hatashitekudasai | Blunt order. Use ~てください in real life. |
| Prohibitive | 果たすな hatasuna | — | “don’t!” — dictionary form + な. |
| Conditional (~ば) | 果たせば hataseba | — | “if ~”. General rules and hypotheticals. |
| Conditional (~たら) | 果たしたら hatashitara | — | “if / when ~”. The everyday conditional. |
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Why it conjugates this way
Godan verbs change their final kana up and down its column of the kana chart — the a-row for negatives, the i-row before ます, the e-row for potential and ば.
See the full rules on the verb conjugation guide.