Japanese reference
決断する
けつだんする
to make a decision
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 | けつだんする (ketsudansuru)make a decision |
| Polite, masu | けつだんします (ketsudanshimasu)make a decision |
Negative
| Person, form or usage | Form and meaning |
|---|---|
| Negative, nai | けつだんしない (ketsudanshinai)do not make a decision |
| Polite negative | けつだんしません (ketsudanshimasen)do not make a decision |
Past
| Person, form or usage | Form and meaning |
|---|---|
| Past, ta | けつだんした (ketsudanshita)made a decision |
| Polite past | けつだんしました (ketsudanshimashita)made a decision |
Past negative
| Person, form or usage | Form and meaning |
|---|---|
| Past negative | けつだんしなかった (ketsudanshinakatta)did not make a decision |
| Polite past negative | けつだんしませんでした (ketsudanshimasendeshita)did not make a decision |
Linking
Te form
| Person, form or usage | Form and meaning |
|---|---|
| Te-form | けつだんして (ketsudanshite)making a decision (and then) |
| Polite te-form | けつだんしまして (ketsudanshimashite)making a decision (and then) |
Te iru
| Person, form or usage | Form and meaning |
|---|---|
| Te-iru: ongoing action / resulting state | けつだんしている (ketsudanshiteiru)be making a decision |
| Polite te-iru | けつだんしています (ketsudanshiteimasu)be making a decision |
Conditional, ba
| Person, form or usage | Form and meaning |
|---|---|
| Conditional, ba | けつだんすれば (ketsudansureba)if you make a decision |
| Rare literary polite conditional | けつだんしますれば (ketsudanshimasureba)if you make a decision (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 | けつだんしたら (ketsudanshitara)if you make a decision |
| Polite conditional, tara | けつだんしましたら (ketsudanshimashitara)if you make a decision |
Mood
Potential
| Person, form or usage | Form and meaning |
|---|---|
| Potential | けつだんできる (ketsudandekiru)can make a decision |
| Polite potential | けつだんできます (ketsudandekimasu)can make a decision |
Volitional
| Person, form or usage | Form and meaning |
|---|---|
| Volitional | けつだんしよう (ketsudanshiyou)let's make a decision! |
| Polite volitional | けつだんしましょう (ketsudanshimashou)let's make a decision! |
Desire, tai
| Person, form or usage | Form and meaning |
|---|---|
| Desire, tai | けつだんしたい (ketsudanshitai)want to make a decision |
| Polite desire, tai | けつだんしたいです (ketsudanshitaidesu)want to make a decision |
Voice
Passive
| Person, form or usage | Form and meaning |
|---|---|
| Passive | けつだんされる (ketsudansareru)be affected when someone makes a decision |
| Polite passive | けつだんされます (ketsudansaremasu)be affected when someone makes a decision |
Causative
| Person, form or usage | Form and meaning |
|---|---|
| Causative | けつだんさせる (ketsudansaseru)make or let someone make a decision |
| Polite causative | けつだんさせます (ketsudansasemasu)make or let someone make a decision |
Causative passive
| Person, form or usage | Form and meaning |
|---|---|
| Causative-passive | けつだんさせられる (ketsudansaserareru)be made to make a decision |
| Polite causative-passive | けつだんさせられます (ketsudansaseraremasu)be made to make a decision |
Commands
Negative imperative
| Person, form or usage | Form and meaning |
|---|---|
| Negative imperative | けつだんするな (ketsudansuruna)do not make a decision! |
| Polite negative request | けつだんしないでください (ketsudanshinaidekudasai)please do not make a decision |
Polite
Polite non past
| Person, form or usage | Form and meaning |
|---|---|
| Polite non-past form | けつだんします (ketsudanshimasu)make a decision |
Polite negative
| Person, form or usage | Form and meaning |
|---|---|
| Polite negative form | けつだんしません (ketsudanshimasen)do not make a decision |
Polite past
| Person, form or usage | Form and meaning |
|---|---|
| Polite past form | けつだんしました (ketsudanshimashita)made a decision |
Polite past negative
| Person, form or usage | Form and meaning |
|---|---|
| Polite past negative form | けつだんしませんでした (ketsudanshimasendeshita)did not make a decision |
Requests
Request with kudasai
| Person, form or usage | Form and meaning |
|---|---|
| Request with kudasai | けつだんしてください (ketsudanshitekudasai)please make a decision |
Negative request
| Person, form or usage | Form and meaning |
|---|---|
| Request not to act | けつだんしないでください (ketsudanshinaidekudasai)please do not make a decision |
Invitation with mashou
| Person, form or usage | Form and meaning |
|---|---|
| Invitation with mashou | けつだんしましょう (ketsudanshimashou)let's make a decision! |
Permission
| Person, form or usage | Form and meaning |
|---|---|
| Permission | けつだんしてもいい (ketsudanshitemoii)may make a decision |
| Polite permission | けつだんしてもいいです (ketsudanshitemoiidesu)may make a decision |
Not allowed
| Person, form or usage | Form and meaning |
|---|---|
| Not allowed | けつだんしてはいけない (ketsudanshitehaikenai)must not make a decision |
| Polite prohibition | けつだんしてはいけません (ketsudanshitehaikemasen)must not make a decision |
Instruction with nasai
| Person, form or usage | Form and meaning |
|---|---|
| Instruction with nasai | けつだんしなさい (ketsudanshinasai)make a decision (instruction) |
Aspect
Try doing
| Person, form or usage | Form and meaning |
|---|---|
| Try doing | けつだんしてみる (ketsudanshitemiru)try to make a decision |
| Polite try doing | けつだんしてみます (ketsudanshitemimasu)try to make a decision |
Completion or regret
| Person, form or usage | Form and meaning |
|---|---|
| Completion or regret | けつだんしてしまう (ketsudanshiteshimau)make a decision completely or regrettably |
| Polite completion or regret | けつだんしてしまいます (ketsudanshiteshimaimasu)make a decision completely or regrettably |
Preparation
| Person, form or usage | Form and meaning |
|---|---|
| Preparation | けつだんしておく (ketsudanshiteoku)make a decision in advance |
| Polite preparation | けつだんしておきます (ketsudanshiteokimasu)make a decision in advance |
Past experience
| Person, form or usage | Form and meaning |
|---|---|
| Past experience | けつだんしたことがある (ketsudanshitakotogaaru)have the experience of: made a decision |
| Polite past experience | けつだんしたことがあります (ketsudanshitakotogaarimasu)have the experience of: made a decision |
Conditions
Automatic result, to
| Person, form or usage | Form and meaning |
|---|---|
| Automatic result, to | けつだんすると (ketsudansuruto)whenever you make a decision |
| Polite automatic result | けつだんしますと (ketsudanshimasuto)whenever you make a decision |
Given that, nara
| Person, form or usage | Form and meaning |
|---|---|
| Given that, nara | けつだんするなら (ketsudansurunara)if you mean to make a decision |
Probability
| Person, form or usage | Form and meaning |
|---|---|
| Probability | けつだんするだろう (ketsudansurudarou)probably make a decision |
| Polite probability | けつだんするでしょう (ketsudansurudeshou)probably make a decision |
Additional forms
Strong command
| Person, form or usage | Form and meaning |
|---|---|
| Imperative | けつだんしろ (ketsudanshiro)make a decision! |
| Polite request | けつだんしてください (ketsudanshitekudasai)please make a decision |
Forms from the Loquus reference. Only supplied forms are shown. Browse all Japanese entries.