強いる (shiiru) conjugation
to force, to compel, to coerce
強いる (しいる, shiiru) 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 | 強いる shiiru | 強います shiimasu | The form you look up. Also the casual present and future. |
| Plain negative | 強いない shiinai | 強いません shiimasen | “doesn’t / won’t”. From here it conjugates like an i-adjective. |
| Plain past | 強いた shiita | 強いました shiimashita | The casual past — same ending as the te-form, with た/だ. |
| Plain past negative | 強いなかった shiinakatta | 強いませんでした shiimasendeshita | “didn’t”. The negative past, still i-adjective-shaped. |
| Te-form | 強いて shiite | — | The connector: requests, linking clauses, ~ている. |
| Progressive (~ている) | 強いている shiiteiru | 強いています shiiteimasu | “is ~ing”, or an ongoing resulting state. |
| Desire (~たい) | 強いたい shiitai | 強いたいです shiitaidesu | “want to ~”. Behaves as an i-adjective. |
| Volitional | 強いよう shiiyou | 強いましょう shiimashou | “let’s ~” / “I think I’ll ~”. |
| Potential | 強いられる shiirareru | 強いられます shiiraremasu | “can ~”. What you could do; the object often takes が. |
| Passive | 強いられる shiirareru | 強いられます shiiraremasu | “is ~ed”. Also the honorific and the suffering passive. |
| Causative | 強いさせる shiisaseru | 強いさせます shiisasemasu | Make or let someone do it. |
| Causative-passive | 強いさせられる shiisaserareru | 強いさせられます shiisaseraremasu | Be made to do it — the long one. |
| Imperative | 強いろ shiiro | 強いてください shiitekudasai | Blunt order. Use ~てください in real life. |
| Prohibitive | 強いるな shiiruna | — | “don’t!” — dictionary form + な. |
| Conditional (~ば) | 強いれば shiireba | — | “if ~”. General rules and hypotheticals. |
| Conditional (~たら) | 強いたら shiitara | — | “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.
