乱す (midasu) conjugation
to throw out of order, to disarrange, to disturb
乱す (みだす, midasu) 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 | 乱す midasu | 乱します midashimasu | The form you look up. Also the casual present and future. |
| Plain negative | 乱さない midasanai | 乱しません midashimasen | “doesn’t / won’t”. From here it conjugates like an i-adjective. |
| Plain past | 乱した midashita | 乱しました midashimashita | The casual past — same ending as the te-form, with た/だ. |
| Plain past negative | 乱さなかった midasanakatta | 乱しませんでした midashimasendeshita | “didn’t”. The negative past, still i-adjective-shaped. |
| Te-form | 乱して midashite | — | The connector: requests, linking clauses, ~ている. |
| Progressive (~ている) | 乱している midashiteiru | 乱しています midashiteimasu | “is ~ing”, or an ongoing resulting state. |
| Desire (~たい) | 乱したい midashitai | 乱したいです midashitaidesu | “want to ~”. Behaves as an i-adjective. |
| Volitional | 乱そう midasou | 乱しましょう midashimashou | “let’s ~” / “I think I’ll ~”. |
| Potential | 乱せる midaseru | 乱せます midasemasu | “can ~”. What you could do; the object often takes が. |
| Passive | 乱される midasareru | 乱されます midasaremasu | “is ~ed”. Also the honorific and the suffering passive. |
| Causative | 乱させる midasaseru | 乱させます midasasemasu | Make or let someone do it. |
| Causative-passive | 乱させられる midasaserareru | 乱させられます midasaseraremasu | Be made to do it — the long one. |
| Imperative | 乱せ midase | 乱してください midashitekudasai | Blunt order. Use ~てください in real life. |
| Prohibitive | 乱すな midasuna | — | “don’t!” — dictionary form + な. |
| Conditional (~ば) | 乱せば midaseba | — | “if ~”. General rules and hypotheticals. |
| Conditional (~たら) | 乱したら midashitara | — | “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.