組む (kumu) conjugation
to put together
組む (くむ, kumu) 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 | 組む kumu | 組みます kumimasu | The form you look up. Also the casual present and future. |
| Plain negative | 組まない kumanai | 組みません kumimasen | “doesn’t / won’t”. From here it conjugates like an i-adjective. |
| Plain past | 組んだ kunda | 組みました kumimashita | The casual past — same ending as the te-form, with た/だ. |
| Plain past negative | 組まなかった kumanakatta | 組みませんでした kumimasendeshita | “didn’t”. The negative past, still i-adjective-shaped. |
| Te-form | 組んで kunde | — | The connector: requests, linking clauses, ~ている. |
| Progressive (~ている) | 組んでいる kundeiru | 組んでいます kundeimasu | “is ~ing”, or an ongoing resulting state. |
| Desire (~たい) | 組みたい kumitai | 組みたいです kumitaidesu | “want to ~”. Behaves as an i-adjective. |
| Volitional | 組もう kumou | 組みましょう kumimashou | “let’s ~” / “I think I’ll ~”. |
| Potential | 組める kumeru | 組めます kumemasu | “can ~”. What you could do; the object often takes が. |
| Passive | 組まれる kumareru | 組まれます kumaremasu | “is ~ed”. Also the honorific and the suffering passive. |
| Causative | 組ませる kumaseru | 組ませます kumasemasu | Make or let someone do it. |
| Causative-passive | 組まされる kumasareru | 組まされます kumasaremasu | Be made to do it — the long one. |
| Imperative | 組め kume | 組んでください kundekudasai | Blunt order. Use ~てください in real life. |
| Prohibitive | 組むな kumuna | — | “don’t!” — dictionary form + な. |
| Conditional (~ば) | 組めば kumeba | — | “if ~”. General rules and hypotheticals. |
| Conditional (~たら) | 組んだら kundara | — | “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.