許す (yurusu) conjugation
to permit, to allow, to approve
許す (ゆるす, yurusu) 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 | 許す yurusu | 許します yurushimasu | The form you look up. Also the casual present and future. |
| Plain negative | 許さない yurusanai | 許しません yurushimasen | “doesn’t / won’t”. From here it conjugates like an i-adjective. |
| Plain past | 許した yurushita | 許しました yurushimashita | The casual past — same ending as the te-form, with た/だ. |
| Plain past negative | 許さなかった yurusanakatta | 許しませんでした yurushimasendeshita | “didn’t”. The negative past, still i-adjective-shaped. |
| Te-form | 許して yurushite | — | The connector: requests, linking clauses, ~ている. |
| Progressive (~ている) | 許している yurushiteiru | 許しています yurushiteimasu | “is ~ing”, or an ongoing resulting state. |
| Desire (~たい) | 許したい yurushitai | 許したいです yurushitaidesu | “want to ~”. Behaves as an i-adjective. |
| Volitional | 許そう yurusou | 許しましょう yurushimashou | “let’s ~” / “I think I’ll ~”. |
| Potential | 許せる yuruseru | 許せます yurusemasu | “can ~”. What you could do; the object often takes が. |
| Passive | 許される yurusareru | 許されます yurusaremasu | “is ~ed”. Also the honorific and the suffering passive. |
| Causative | 許させる yurusaseru | 許させます yurusasemasu | Make or let someone do it. |
| Causative-passive | 許させられる yurusaserareru | 許させられます yurusaseraremasu | Be made to do it — the long one. |
| Imperative | 許せ yuruse | 許してください yurushitekudasai | Blunt order. Use ~てください in real life. |
| Prohibitive | 許すな yurusuna | — | “don’t!” — dictionary form + な. |
| Conditional (~ば) | 許せば yuruseba | — | “if ~”. General rules and hypotheticals. |
| Conditional (~たら) | 許したら yurushitara | — | “if / when ~”. The everyday conditional. |
🔊 Tap any Japanese word to hear it spoken.
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.