信じる (shinjiru) conjugation
to believe
信じる (しんじる, shinjiru) 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 | 信じる shinjiru | 信じます shinjimasu | The form you look up. Also the casual present and future. |
| Plain negative | 信じない shinjinai | 信じません shinjimasen | “doesn’t / won’t”. From here it conjugates like an i-adjective. |
| Plain past | 信じた shinjita | 信じました shinjimashita | The casual past — same ending as the te-form, with た/だ. |
| Plain past negative | 信じなかった shinjinakatta | 信じませんでした shinjimasendeshita | “didn’t”. The negative past, still i-adjective-shaped. |
| Te-form | 信じて shinjite | — | The connector: requests, linking clauses, ~ている. |
| Progressive (~ている) | 信じている shinjiteiru | 信じています shinjiteimasu | “is ~ing”, or an ongoing resulting state. |
| Desire (~たい) | 信じたい shinjitai | 信じたいです shinjitaidesu | “want to ~”. Behaves as an i-adjective. |
| Volitional | 信じよう shinjiyou | 信じましょう shinjimashou | “let’s ~” / “I think I’ll ~”. |
| Potential | 信じられる shinjirareru | 信じられます shinjiraremasu | “can ~”. What you could do; the object often takes が. |
| Passive | 信じられる shinjirareru | 信じられます shinjiraremasu | “is ~ed”. Also the honorific and the suffering passive. |
| Causative | 信じさせる shinjisaseru | 信じさせます shinjisasemasu | Make or let someone do it. |
| Causative-passive | 信じさせられる shinjisaserareru | 信じさせられます shinjisaseraremasu | Be made to do it — the long one. |
| Imperative | 信じろ shinjiro | 信じてください shinjitekudasai | Blunt order. Use ~てください in real life. |
| Prohibitive | 信じるな shinjiruna | — | “don’t!” — dictionary form + な. |
| Conditional (~ば) | 信じれば shinjireba | — | “if ~”. General rules and hypotheticals. |
| Conditional (~たら) | 信じたら shinjitara | — | “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.
