出くわす (dekuwasu) conjugation
to happen to meet, to come across
出くわす (でくわす, dekuwasu) 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 | 出くわす dekuwasu | 出くわします dekuwashimasu | The form you look up. Also the casual present and future. |
| Plain negative | 出くわさない dekuwasanai | 出くわしません dekuwashimasen | “doesn’t / won’t”. From here it conjugates like an i-adjective. |
| Plain past | 出くわした dekuwashita | 出くわしました dekuwashimashita | The casual past — same ending as the te-form, with た/だ. |
| Plain past negative | 出くわさなかった dekuwasanakatta | 出くわしませんでした dekuwashimasendeshita | “didn’t”. The negative past, still i-adjective-shaped. |
| Te-form | 出くわして dekuwashite | — | The connector: requests, linking clauses, ~ている. |
| Progressive (~ている) | 出くわしている dekuwashiteiru | 出くわしています dekuwashiteimasu | “is ~ing”, or an ongoing resulting state. |
| Desire (~たい) | 出くわしたい dekuwashitai | 出くわしたいです dekuwashitaidesu | “want to ~”. Behaves as an i-adjective. |
| Volitional | 出くわそう dekuwasou | 出くわしましょう dekuwashimashou | “let’s ~” / “I think I’ll ~”. |
| Potential | 出くわせる dekuwaseru | 出くわせます dekuwasemasu | “can ~”. What you could do; the object often takes が. |
| Passive | 出くわされる dekuwasareru | 出くわされます dekuwasaremasu | “is ~ed”. Also the honorific and the suffering passive. |
| Causative | 出くわさせる dekuwasaseru | 出くわさせます dekuwasasemasu | Make or let someone do it. |
| Causative-passive | 出くわさせられる dekuwasaserareru | 出くわさせられます dekuwasaseraremasu | Be made to do it — the long one. |
| Imperative | 出くわせ dekuwase | 出くわしてください dekuwashitekudasai | Blunt order. Use ~てください in real life. |
| Prohibitive | 出くわすな dekuwasuna | — | “don’t!” — dictionary form + な. |
| Conditional (~ば) | 出くわせば dekuwaseba | — | “if ~”. General rules and hypotheticals. |
| Conditional (~たら) | 出くわしたら dekuwashitara | — | “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.