済ませる (sumaseru) conjugation
to be finished
済ませる (すませる, sumaseru) is an ichidan verb. Ichidan verbs are the tidy ones: drop the final る and add the ending. Nothing inside the word ever changes. 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 | 済ませる sumaseru | 済ませます sumasemasu | The form you look up. Also the casual present and future. |
| Plain negative | 済ませない sumasenai | 済ませません sumasemasen | “doesn’t / won’t”. From here it conjugates like an i-adjective. |
| Plain past | 済ませた sumaseta | 済ませました sumasemashita | The casual past — same ending as the te-form, with た/だ. |
| Plain past negative | 済ませなかった sumasenakatta | 済ませませんでした sumasemasendeshita | “didn’t”. The negative past, still i-adjective-shaped. |
| Te-form | 済ませて sumasete | — | The connector: requests, linking clauses, ~ている. |
| Progressive (~ている) | 済ませている sumaseteiru | 済ませています sumaseteimasu | “is ~ing”, or an ongoing resulting state. |
| Desire (~たい) | 済ませたい sumasetai | 済ませたいです sumasetaidesu | “want to ~”. Behaves as an i-adjective. |
| Volitional | 済ませよう sumaseyou | 済ませましょう sumasemashou | “let’s ~” / “I think I’ll ~”. |
| Potential | 済ませられる sumaserareru | 済ませられます sumaseraremasu | “can ~”. What you could do; the object often takes が. |
| Passive | 済ませられる sumaserareru | 済ませられます sumaseraremasu | “is ~ed”. Also the honorific and the suffering passive. |
| Causative | 済ませさせる sumasesaseru | 済ませさせます sumasesasemasu | Make or let someone do it. |
| Causative-passive | 済ませさせられる sumasesaserareru | 済ませさせられます sumasesaseraremasu | Be made to do it — the long one. |
| Imperative | 済ませろ sumasero | 済ませてください sumasetekudasai | Blunt order. Use ~てください in real life. |
| Prohibitive | 済ませるな sumaseruna | — | “don’t!” — dictionary form + な. |
| Conditional (~ば) | 済ませれば sumasereba | — | “if ~”. General rules and hypotheticals. |
| Conditional (~たら) | 済ませたら sumasetara | — | “if / when ~”. The everyday conditional. |
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Why it conjugates this way
Ichidan verbs are the tidy ones: drop the final る and add the ending. Nothing inside the word ever changes.
See the full rules on the verb conjugation guide.