砕く (kudaku) conjugation
to break, to smash
砕く (くだく, kudaku) 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 | 砕く kudaku | 砕きます kudakimasu | The form you look up. Also the casual present and future. |
| Plain negative | 砕かない kudakanai | 砕きません kudakimasen | “doesn’t / won’t”. From here it conjugates like an i-adjective. |
| Plain past | 砕いた kudaita | 砕きました kudakimashita | The casual past — same ending as the te-form, with た/だ. |
| Plain past negative | 砕かなかった kudakanakatta | 砕きませんでした kudakimasendeshita | “didn’t”. The negative past, still i-adjective-shaped. |
| Te-form | 砕いて kudaite | — | The connector: requests, linking clauses, ~ている. |
| Progressive (~ている) | 砕いている kudaiteiru | 砕いています kudaiteimasu | “is ~ing”, or an ongoing resulting state. |
| Desire (~たい) | 砕きたい kudakitai | 砕きたいです kudakitaidesu | “want to ~”. Behaves as an i-adjective. |
| Volitional | 砕こう kudakou | 砕きましょう kudakimashou | “let’s ~” / “I think I’ll ~”. |
| Potential | 砕ける kudakeru | 砕けます kudakemasu | “can ~”. What you could do; the object often takes が. |
| Passive | 砕かれる kudakareru | 砕かれます kudakaremasu | “is ~ed”. Also the honorific and the suffering passive. |
| Causative | 砕かせる kudakaseru | 砕かせます kudakasemasu | Make or let someone do it. |
| Causative-passive | 砕かされる kudakasareru | 砕かされます kudakasaremasu | Be made to do it — the long one. |
| Imperative | 砕け kudake | 砕いてください kudaitekudasai | Blunt order. Use ~てください in real life. |
| Prohibitive | 砕くな kudakuna | — | “don’t!” — dictionary form + な. |
| Conditional (~ば) | 砕けば kudakeba | — | “if ~”. General rules and hypotheticals. |
| Conditional (~たら) | 砕いたら kudaitara | — | “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.