治める (osameru) conjugation
to govern, to manage; to subdue
治める (おさめる, osameru) 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 | 治める osameru | 治めます osamemasu | The form you look up. Also the casual present and future. |
| Plain negative | 治めない osamenai | 治めません osamemasen | “doesn’t / won’t”. From here it conjugates like an i-adjective. |
| Plain past | 治めた osameta | 治めました osamemashita | The casual past — same ending as the te-form, with た/だ. |
| Plain past negative | 治めなかった osamenakatta | 治めませんでした osamemasendeshita | “didn’t”. The negative past, still i-adjective-shaped. |
| Te-form | 治めて osamete | — | The connector: requests, linking clauses, ~ている. |
| Progressive (~ている) | 治めている osameteiru | 治めています osameteimasu | “is ~ing”, or an ongoing resulting state. |
| Desire (~たい) | 治めたい osametai | 治めたいです osametaidesu | “want to ~”. Behaves as an i-adjective. |
| Volitional | 治めよう osameyou | 治めましょう osamemashou | “let’s ~” / “I think I’ll ~”. |
| Potential | 治められる osamerareru | 治められます osameraremasu | “can ~”. What you could do; the object often takes が. |
| Passive | 治められる osamerareru | 治められます osameraremasu | “is ~ed”. Also the honorific and the suffering passive. |
| Causative | 治めさせる osamesaseru | 治めさせます osamesasemasu | Make or let someone do it. |
| Causative-passive | 治めさせられる osamesaserareru | 治めさせられます osamesaseraremasu | Be made to do it — the long one. |
| Imperative | 治めろ osamero | 治めてください osametekudasai | Blunt order. Use ~てください in real life. |
| Prohibitive | 治めるな osameruna | — | “don’t!” — dictionary form + な. |
| Conditional (~ば) | 治めれば osamereba | — | “if ~”. General rules and hypotheticals. |
| Conditional (~たら) | 治めたら osametara | — | “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.