突く (tsuku) conjugation
to thrust, to strike; to poke
突く (つく, tsuku) 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 | 突く tsuku | 突きます tsukimasu | The form you look up. Also the casual present and future. |
| Plain negative | 突かない tsukanai | 突きません tsukimasen | “doesn’t / won’t”. From here it conjugates like an i-adjective. |
| Plain past | 突いた tsuita | 突きました tsukimashita | The casual past — same ending as the te-form, with た/だ. |
| Plain past negative | 突かなかった tsukanakatta | 突きませんでした tsukimasendeshita | “didn’t”. The negative past, still i-adjective-shaped. |
| Te-form | 突いて tsuite | — | The connector: requests, linking clauses, ~ている. |
| Progressive (~ている) | 突いている tsuiteiru | 突いています tsuiteimasu | “is ~ing”, or an ongoing resulting state. |
| Desire (~たい) | 突きたい tsukitai | 突きたいです tsukitaidesu | “want to ~”. Behaves as an i-adjective. |
| Volitional | 突こう tsukou | 突きましょう tsukimashou | “let’s ~” / “I think I’ll ~”. |
| Potential | 突ける tsukeru | 突けます tsukemasu | “can ~”. What you could do; the object often takes が. |
| Passive | 突かれる tsukareru | 突かれます tsukaremasu | “is ~ed”. Also the honorific and the suffering passive. |
| Causative | 突かせる tsukaseru | 突かせます tsukasemasu | Make or let someone do it. |
| Causative-passive | 突かされる tsukasareru | 突かされます tsukasaremasu | Be made to do it — the long one. |
| Imperative | 突け tsuke | 突いてください tsuitekudasai | Blunt order. Use ~てください in real life. |
| Prohibitive | 突くな tsukuna | — | “don’t!” — dictionary form + な. |
| Conditional (~ば) | 突けば tsukeba | — | “if ~”. General rules and hypotheticals. |
| Conditional (~たら) | 突いたら tsuitara | — | “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.