戻す (modosu) conjugation
to restore, to put back, to return
戻す (もどす, modosu) 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 | 戻す modosu | 戻します modoshimasu | The form you look up. Also the casual present and future. |
| Plain negative | 戻さない modosanai | 戻しません modoshimasen | “doesn’t / won’t”. From here it conjugates like an i-adjective. |
| Plain past | 戻した modoshita | 戻しました modoshimashita | The casual past — same ending as the te-form, with た/だ. |
| Plain past negative | 戻さなかった modosanakatta | 戻しませんでした modoshimasendeshita | “didn’t”. The negative past, still i-adjective-shaped. |
| Te-form | 戻して modoshite | — | The connector: requests, linking clauses, ~ている. |
| Progressive (~ている) | 戻している modoshiteiru | 戻しています modoshiteimasu | “is ~ing”, or an ongoing resulting state. |
| Desire (~たい) | 戻したい modoshitai | 戻したいです modoshitaidesu | “want to ~”. Behaves as an i-adjective. |
| Volitional | 戻そう modosou | 戻しましょう modoshimashou | “let’s ~” / “I think I’ll ~”. |
| Potential | 戻せる modoseru | 戻せます modosemasu | “can ~”. What you could do; the object often takes が. |
| Passive | 戻される modosareru | 戻されます modosaremasu | “is ~ed”. Also the honorific and the suffering passive. |
| Causative | 戻させる modosaseru | 戻させます modosasemasu | Make or let someone do it. |
| Causative-passive | 戻させられる modosaserareru | 戻させられます modosaseraremasu | Be made to do it — the long one. |
| Imperative | 戻せ modose | 戻してください modoshitekudasai | Blunt order. Use ~てください in real life. |
| Prohibitive | 戻すな modosuna | — | “don’t!” — dictionary form + な. |
| Conditional (~ば) | 戻せば modoseba | — | “if ~”. General rules and hypotheticals. |
| Conditional (~たら) | 戻したら modoshitara | — | “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.