Japanese reference
警告する
けいこくする
to warn
Irregular · 32 form tables
Rows describe verb forms and levels of politeness. Honorific and humble forms are labeled separately. Strong commands appear under additional forms.
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Basic
Non past
| Person, form or usage | Form and meaning |
|---|---|
| Dictionary form | けいこくする (keikokusuru)warn |
| Polite, masu | けいこくします (keikokushimasu)warn |
Negative
| Person, form or usage | Form and meaning |
|---|---|
| Negative, nai | けいこくしない (keikokushinai)do not warn |
| Polite negative | けいこくしません (keikokushimasen)do not warn |
Past
| Person, form or usage | Form and meaning |
|---|---|
| Past, ta | けいこくした (keikokushita)warned |
| Polite past | けいこくしました (keikokushimashita)warned |
Past negative
| Person, form or usage | Form and meaning |
|---|---|
| Past negative | けいこくしなかった (keikokushinakatta)did not warn |
| Polite past negative | けいこくしませんでした (keikokushimasendeshita)did not warn |
Linking
Te form
| Person, form or usage | Form and meaning |
|---|---|
| Te-form | けいこくして (keikokushite)warning (and then) |
| Polite te-form | けいこくしまして (keikokushimashite)warning (and then) |
Te iru
| Person, form or usage | Form and meaning |
|---|---|
| Te-iru: ongoing action / resulting state | けいこくしている (keikokushiteiru)be warning |
| Polite te-iru | けいこくしています (keikokushiteimasu)be warning |
Conditional, ba
| Person, form or usage | Form and meaning |
|---|---|
| Conditional, ba | けいこくすれば (keikokusureba)if you warn |
| Rare literary polite conditional | けいこくしますれば (keikokushimasureba)if you warn (rare and literary). In ordinary polite conversation, use the plain conditional and make the main clause polite |
Conditional, tara
| Person, form or usage | Form and meaning |
|---|---|
| Conditional, tara | けいこくしたら (keikokushitara)if you warn |
| Polite conditional, tara | けいこくしましたら (keikokushimashitara)if you warn |
Mood
Potential
| Person, form or usage | Form and meaning |
|---|---|
| Potential | けいこくできる (keikokudekiru)can warn |
| Polite potential | けいこくできます (keikokudekimasu)can warn |
Volitional
| Person, form or usage | Form and meaning |
|---|---|
| Volitional | けいこくしよう (keikokushiyou)let's warn! |
| Polite volitional | けいこくしましょう (keikokushimashou)let's warn! |
Desire, tai
| Person, form or usage | Form and meaning |
|---|---|
| Desire, tai | けいこくしたい (keikokushitai)want to warn |
| Polite desire, tai | けいこくしたいです (keikokushitaidesu)want to warn |
Voice
Passive
| Person, form or usage | Form and meaning |
|---|---|
| Passive | けいこくされる (keikokusareru)be warned |
| Polite passive | けいこくされます (keikokusaremasu)be warned |
Causative
| Person, form or usage | Form and meaning |
|---|---|
| Causative | けいこくさせる (keikokusaseru)make or let someone warn |
| Polite causative | けいこくさせます (keikokusasemasu)make or let someone warn |
Causative passive
| Person, form or usage | Form and meaning |
|---|---|
| Causative-passive | けいこくさせられる (keikokusaserareru)be made to warn |
| Polite causative-passive | けいこくさせられます (keikokusaseraremasu)be made to warn |
Commands
Negative imperative
| Person, form or usage | Form and meaning |
|---|---|
| Negative imperative | けいこくするな (keikokusuruna)do not warn! |
| Polite negative request | けいこくしないでください (keikokushinaidekudasai)please do not warn |
Polite
Polite non past
| Person, form or usage | Form and meaning |
|---|---|
| Polite non-past form | けいこくします (keikokushimasu)warn |
Polite negative
| Person, form or usage | Form and meaning |
|---|---|
| Polite negative form | けいこくしません (keikokushimasen)do not warn |
Polite past
| Person, form or usage | Form and meaning |
|---|---|
| Polite past form | けいこくしました (keikokushimashita)warned |
Polite past negative
| Person, form or usage | Form and meaning |
|---|---|
| Polite past negative form | けいこくしませんでした (keikokushimasendeshita)did not warn |
Requests
Request with kudasai
| Person, form or usage | Form and meaning |
|---|---|
| Request with kudasai | けいこくしてください (keikokushitekudasai)please warn |
Negative request
| Person, form or usage | Form and meaning |
|---|---|
| Request not to act | けいこくしないでください (keikokushinaidekudasai)please do not warn |
Invitation with mashou
| Person, form or usage | Form and meaning |
|---|---|
| Invitation with mashou | けいこくしましょう (keikokushimashou)let's warn! |
Permission
| Person, form or usage | Form and meaning |
|---|---|
| Permission | けいこくしてもいい (keikokushitemoii)may warn |
| Polite permission | けいこくしてもいいです (keikokushitemoiidesu)may warn |
Not allowed
| Person, form or usage | Form and meaning |
|---|---|
| Not allowed | けいこくしてはいけない (keikokushitehaikenai)must not warn |
| Polite prohibition | けいこくしてはいけません (keikokushitehaikemasen)must not warn |
Instruction with nasai
| Person, form or usage | Form and meaning |
|---|---|
| Instruction with nasai | けいこくしなさい (keikokushinasai)warn (instruction) |
Aspect
Try doing
| Person, form or usage | Form and meaning |
|---|---|
| Try doing | けいこくしてみる (keikokushitemiru)try to warn |
| Polite try doing | けいこくしてみます (keikokushitemimasu)try to warn |
Completion or regret
| Person, form or usage | Form and meaning |
|---|---|
| Completion or regret | けいこくしてしまう (keikokushiteshimau)warn completely or regrettably |
| Polite completion or regret | けいこくしてしまいます (keikokushiteshimaimasu)warn completely or regrettably |
Preparation
| Person, form or usage | Form and meaning |
|---|---|
| Preparation | けいこくしておく (keikokushiteoku)warn in advance |
| Polite preparation | けいこくしておきます (keikokushiteokimasu)warn in advance |
Past experience
| Person, form or usage | Form and meaning |
|---|---|
| Past experience | けいこくしたことがある (keikokushitakotogaaru)have the experience of: warned |
| Polite past experience | けいこくしたことがあります (keikokushitakotogaarimasu)have the experience of: warned |
Conditions
Automatic result, to
| Person, form or usage | Form and meaning |
|---|---|
| Automatic result, to | けいこくすると (keikokusuruto)whenever you warn |
| Polite automatic result | けいこくしますと (keikokushimasuto)whenever you warn |
Given that, nara
| Person, form or usage | Form and meaning |
|---|---|
| Given that, nara | けいこくするなら (keikokusurunara)if you mean to warn |
Probability
| Person, form or usage | Form and meaning |
|---|---|
| Probability | けいこくするだろう (keikokusurudarou)probably warn |
| Polite probability | けいこくするでしょう (keikokusurudeshou)probably warn |
Additional forms
Strong command
| Person, form or usage | Form and meaning |
|---|---|
| Imperative | けいこくしろ (keikokushiro)warn! |
| Polite request | けいこくしてください (keikokushitekudasai)please warn |
Forms from the Loquus reference. Only supplied forms are shown. Browse all Japanese entries.