取り入れる (toriireru) conjugation
to harvest, to take in, to adopt
取り入れる (とりいれる, toriireru) 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 | 取り入れる toriireru | 取り入れます toriiremasu | The form you look up. Also the casual present and future. |
| Plain negative | 取り入れない toriirenai | 取り入れません toriiremasen | “doesn’t / won’t”. From here it conjugates like an i-adjective. |
| Plain past | 取り入れた toriireta | 取り入れました toriiremashita | The casual past — same ending as the te-form, with た/だ. |
| Plain past negative | 取り入れなかった toriirenakatta | 取り入れませんでした toriiremasendeshita | “didn’t”. The negative past, still i-adjective-shaped. |
| Te-form | 取り入れて toriirete | — | The connector: requests, linking clauses, ~ている. |
| Progressive (~ている) | 取り入れている toriireteiru | 取り入れています toriireteimasu | “is ~ing”, or an ongoing resulting state. |
| Desire (~たい) | 取り入れたい toriiretai | 取り入れたいです toriiretaidesu | “want to ~”. Behaves as an i-adjective. |
| Volitional | 取り入れよう toriireyou | 取り入れましょう toriiremashou | “let’s ~” / “I think I’ll ~”. |
| Potential | 取り入れられる toriirerareru | 取り入れられます toriireraremasu | “can ~”. What you could do; the object often takes が. |
| Passive | 取り入れられる toriirerareru | 取り入れられます toriireraremasu | “is ~ed”. Also the honorific and the suffering passive. |
| Causative | 取り入れさせる toriiresaseru | 取り入れさせます toriiresasemasu | Make or let someone do it. |
| Causative-passive | 取り入れさせられる toriiresaserareru | 取り入れさせられます toriiresaseraremasu | Be made to do it — the long one. |
| Imperative | 取り入れろ toriirero | 取り入れてください toriiretekudasai | Blunt order. Use ~てください in real life. |
| Prohibitive | 取り入れるな toriireruna | — | “don’t!” — dictionary form + な. |
| Conditional (~ば) | 取り入れれば toriirereba | — | “if ~”. General rules and hypotheticals. |
| Conditional (~たら) | 取り入れたら toriiretara | — | “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.