入れる (ireru) conjugation
to put in
入れる (いれる, ireru) 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 | 入れる ireru | 入れます iremasu | The form you look up. Also the casual present and future. |
| Plain negative | 入れない irenai | 入れません iremasen | “doesn’t / won’t”. From here it conjugates like an i-adjective. |
| Plain past | 入れた ireta | 入れました iremashita | The casual past — same ending as the te-form, with た/だ. |
| Plain past negative | 入れなかった irenakatta | 入れませんでした iremasendeshita | “didn’t”. The negative past, still i-adjective-shaped. |
| Te-form | 入れて irete | — | The connector: requests, linking clauses, ~ている. |
| Progressive (~ている) | 入れている ireteiru | 入れています ireteimasu | “is ~ing”, or an ongoing resulting state. |
| Desire (~たい) | 入れたい iretai | 入れたいです iretaidesu | “want to ~”. Behaves as an i-adjective. |
| Volitional | 入れよう ireyou | 入れましょう iremashou | “let’s ~” / “I think I’ll ~”. |
| Potential | 入れられる irerareru | 入れられます ireraremasu | “can ~”. What you could do; the object often takes が. |
| Passive | 入れられる irerareru | 入れられます ireraremasu | “is ~ed”. Also the honorific and the suffering passive. |
| Causative | 入れさせる iresaseru | 入れさせます iresasemasu | Make or let someone do it. |
| Causative-passive | 入れさせられる iresaserareru | 入れさせられます iresaseraremasu | Be made to do it — the long one. |
| Imperative | 入れろ irero | 入れてください iretekudasai | Blunt order. Use ~てください in real life. |
| Prohibitive | 入れるな ireruna | — | “don’t!” — dictionary form + な. |
| Conditional (~ば) | 入れれば irereba | — | “if ~”. General rules and hypotheticals. |
| Conditional (~たら) | 入れたら iretara | — | “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.
