接する (sessuru) conjugation
to attend to (someone); to associate with
接する (せっする, sessuru) is an irregular verb. Only する and 来る are truly irregular, and every learner meets them in week one. 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 | 接する sessuru | 接します sesshimasu | The form you look up. Also the casual present and future. |
| Plain negative | 接しない sesshinai | 接しません sesshimasen | “doesn’t / won’t”. From here it conjugates like an i-adjective. |
| Plain past | 接した sesshita | 接しました sesshimashita | The casual past — same ending as the te-form, with た/だ. |
| Plain past negative | 接しなかった sesshinakatta | 接しませんでした sesshimasendeshita | “didn’t”. The negative past, still i-adjective-shaped. |
| Te-form | 接して sesshite | — | The connector: requests, linking clauses, ~ている. |
| Progressive (~ている) | 接している sesshiteiru | 接しています sesshiteimasu | “is ~ing”, or an ongoing resulting state. |
| Desire (~たい) | 接したい sesshitai | 接したいです sesshitaidesu | “want to ~”. Behaves as an i-adjective. |
| Volitional | 接しよう sesshiyou | 接しましょう sesshimashou | “let’s ~” / “I think I’ll ~”. |
| Potential | 接できる seddekiru | 接できます seddekimasu | “can ~”. What you could do; the object often takes が. |
| Passive | 接される sessareru | 接されます sessaremasu | “is ~ed”. Also the honorific and the suffering passive. |
| Causative | 接させる sessaseru | 接させます sessasemasu | Make or let someone do it. |
| Causative-passive | 接させられる sessaserareru | 接させられます sessaseraremasu | Be made to do it — the long one. |
| Imperative | 接しろ sesshiro | 接してください sesshitekudasai | Blunt order. Use ~てください in real life. |
| Prohibitive | 接するな sessuruna | — | “don’t!” — dictionary form + な. |
| Conditional (~ば) | 接すれば sessureba | — | “if ~”. General rules and hypotheticals. |
| Conditional (~たら) | 接したら sesshitara | — | “if / when ~”. The everyday conditional. |
🔊 Tap any Japanese word to hear it spoken.
Why it conjugates this way
Only する and 来る are truly irregular, and every learner meets them in week one.
See the full rules on the verb conjugation guide.