怠る (okotaru) conjugation
to neglect, to fail
怠る (おこたる, okotaru) 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 | 怠る okotaru | 怠ります okotarimasu | The form you look up. Also the casual present and future. |
| Plain negative | 怠らない okotaranai | 怠りません okotarimasen | “doesn’t / won’t”. From here it conjugates like an i-adjective. |
| Plain past | 怠った okotatta | 怠りました okotarimashita | The casual past — same ending as the te-form, with た/だ. |
| Plain past negative | 怠らなかった okotaranakatta | 怠りませんでした okotarimasendeshita | “didn’t”. The negative past, still i-adjective-shaped. |
| Te-form | 怠って okotatte | — | The connector: requests, linking clauses, ~ている. |
| Progressive (~ている) | 怠っている okotatteiru | 怠っています okotatteimasu | “is ~ing”, or an ongoing resulting state. |
| Desire (~たい) | 怠りたい okotaritai | 怠りたいです okotaritaidesu | “want to ~”. Behaves as an i-adjective. |
| Volitional | 怠ろう okotarou | 怠りましょう okotarimashou | “let’s ~” / “I think I’ll ~”. |
| Potential | 怠れる okotareru | 怠れます okotaremasu | “can ~”. What you could do; the object often takes が. |
| Passive | 怠られる okotarareru | 怠られます okotararemasu | “is ~ed”. Also the honorific and the suffering passive. |
| Causative | 怠らせる okotaraseru | 怠らせます okotarasemasu | Make or let someone do it. |
| Causative-passive | 怠らされる okotarasareru | 怠らされます okotarasaremasu | Be made to do it — the long one. |
| Imperative | 怠れ okotare | 怠ってください okotattekudasai | Blunt order. Use ~てください in real life. |
| Prohibitive | 怠るな okotaruna | — | “don’t!” — dictionary form + な. |
| Conditional (~ば) | 怠れば okotareba | — | “if ~”. General rules and hypotheticals. |
| Conditional (~たら) | 怠ったら okotattara | — | “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.