足りる (tariru) conjugation
to be sufficient; to be enough
足りる (たりる, tariru) is an ichidan verb. Ichidan verbs are the tidy ones: drop the final る and add the ending. Nothing inside the word ever changes. 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 | 足りる tariru | 足ります tarimasu | The form you look up. Also the casual present and future. |
| Plain negative | 足りない tarinai | 足りません tarimasen | “doesn’t / won’t”. From here it conjugates like an i-adjective. |
| Plain past | 足りた tarita | 足りました tarimashita | The casual past — same ending as the te-form, with た/だ. |
| Plain past negative | 足りなかった tarinakatta | 足りませんでした tarimasendeshita | “didn’t”. The negative past, still i-adjective-shaped. |
| Te-form | 足りて tarite | — | The connector: requests, linking clauses, ~ている. |
| Progressive (~ている) | 足りている tariteiru | 足りています tariteimasu | “is ~ing”, or an ongoing resulting state. |
| Desire (~たい) | 足りたい taritai | 足りたいです taritaidesu | “want to ~”. Behaves as an i-adjective. |
| Volitional | 足りよう tariyou | 足りましょう tarimashou | “let’s ~” / “I think I’ll ~”. |
| Potential | 足りられる tarirareru | 足りられます tariraremasu | “can ~”. What you could do; the object often takes が. |
| Passive | 足りられる tarirareru | 足りられます tariraremasu | “is ~ed”. Also the honorific and the suffering passive. |
| Causative | 足りさせる tarisaseru | 足りさせます tarisasemasu | Make or let someone do it. |
| Causative-passive | 足りさせられる tarisaserareru | 足りさせられます tarisaseraremasu | Be made to do it — the long one. |
| Imperative | 足りろ tariro | 足りてください taritekudasai | Blunt order. Use ~てください in real life. |
| Prohibitive | 足りるな tariruna | — | “don’t!” — dictionary form + な. |
| Conditional (~ば) | 足りれば tarireba | — | “if ~”. General rules and hypotheticals. |
| Conditional (~たら) | 足りたら taritara | — | “if / when ~”. The everyday conditional. |
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Why it conjugates this way
Ichidan verbs are the tidy ones: drop the final る and add the ending. Nothing inside the word ever changes.
See the full rules on the verb conjugation guide.