結ぶ (musubu) conjugation
to tie, to bind, to link
結ぶ (むすぶ, musubu) 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 | 結ぶ musubu | 結びます musubimasu | The form you look up. Also the casual present and future. |
| Plain negative | 結ばない musubanai | 結びません musubimasen | “doesn’t / won’t”. From here it conjugates like an i-adjective. |
| Plain past | 結んだ musunda | 結びました musubimashita | The casual past — same ending as the te-form, with た/だ. |
| Plain past negative | 結ばなかった musubanakatta | 結びませんでした musubimasendeshita | “didn’t”. The negative past, still i-adjective-shaped. |
| Te-form | 結んで musunde | — | The connector: requests, linking clauses, ~ている. |
| Progressive (~ている) | 結んでいる musundeiru | 結んでいます musundeimasu | “is ~ing”, or an ongoing resulting state. |
| Desire (~たい) | 結びたい musubitai | 結びたいです musubitaidesu | “want to ~”. Behaves as an i-adjective. |
| Volitional | 結ぼう musubou | 結びましょう musubimashou | “let’s ~” / “I think I’ll ~”. |
| Potential | 結べる musuberu | 結べます musubemasu | “can ~”. What you could do; the object often takes が. |
| Passive | 結ばれる musubareru | 結ばれます musubaremasu | “is ~ed”. Also the honorific and the suffering passive. |
| Causative | 結ばせる musubaseru | 結ばせます musubasemasu | Make or let someone do it. |
| Causative-passive | 結ばされる musubasareru | 結ばされます musubasaremasu | Be made to do it — the long one. |
| Imperative | 結べ musube | 結んでください musundekudasai | Blunt order. Use ~てください in real life. |
| Prohibitive | 結ぶな musubuna | — | “don’t!” — dictionary form + な. |
| Conditional (~ば) | 結べば musubeba | — | “if ~”. General rules and hypotheticals. |
| Conditional (~たら) | 結んだら musundara | — | “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.