題する (daisuru) conjugation
to title
題する (だいする, daisuru) 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 | 題する daisuru | 題します daishimasu | The form you look up. Also the casual present and future. |
| Plain negative | 題しない daishinai | 題しません daishimasen | “doesn’t / won’t”. From here it conjugates like an i-adjective. |
| Plain past | 題した daishita | 題しました daishimashita | The casual past — same ending as the te-form, with た/だ. |
| Plain past negative | 題しなかった daishinakatta | 題しませんでした daishimasendeshita | “didn’t”. The negative past, still i-adjective-shaped. |
| Te-form | 題して daishite | — | The connector: requests, linking clauses, ~ている. |
| Progressive (~ている) | 題している daishiteiru | 題しています daishiteimasu | “is ~ing”, or an ongoing resulting state. |
| Desire (~たい) | 題したい daishitai | 題したいです daishitaidesu | “want to ~”. Behaves as an i-adjective. |
| Volitional | 題しよう daishiyou | 題しましょう daishimashou | “let’s ~” / “I think I’ll ~”. |
| Potential | 題できる daidekiru | 題できます daidekimasu | “can ~”. What you could do; the object often takes が. |
| Passive | 題される daisareru | 題されます daisaremasu | “is ~ed”. Also the honorific and the suffering passive. |
| Causative | 題させる daisaseru | 題させます daisasemasu | Make or let someone do it. |
| Causative-passive | 題させられる daisaserareru | 題させられます daisaseraremasu | Be made to do it — the long one. |
| Imperative | 題しろ daishiro | 題してください daishitekudasai | Blunt order. Use ~てください in real life. |
| Prohibitive | 題するな daisuruna | — | “don’t!” — dictionary form + な. |
| Conditional (~ば) | 題すれば daisureba | — | “if ~”. General rules and hypotheticals. |
| Conditional (~たら) | 題したら daishitara | — | “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.