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Japanese verb · ru-verb · first needed at intermediate level (B1)

決める

kimeru

to decide

What you decide takes (o): (hinichi o kimeru). For choosing, use (ni): (kore ni kimemasu), I'll go with this one.

Speed:

Present

現在形

Now, habits and the future. The plain form is for friends and family; polite ~ます is the default.

plain決めるkimeru
polite決めますkimemasu
plain negative決めないkimenai
polite negative決めませんkimemasen

Past

過去形

What happened, or what has happened. The plain form is for friends and family; polite ~ました is the default.

plain決めたkimeta
polite決めましたkimemashita
plain negative決めなかったkimenakatta
polite negative決めませんでしたkimemasen deshita

Te-form

て形

Joins actions and builds requests. (kimete imasu): “have decided (and it still stands)”.

te-form決めてkimete
-te imasu (doing now)決めていますkimete imasu
-te kudasai (please do)決めてくださいkimete kudasai
-te mo ii desu ka (may I)決めてもいいですかkimete mo ii desu ka

Volitional

意向形

Let's: the plain form between friends, ~ましょう in polite speech. ~ましょうか suggests (shall we?) or offers help (shall I?).

plain (let's)決めようkimeyō
polite (let's)決めましょうkimemashō
polite (shall we?)決めましょうかkimemashō ka

Potential

可能形

Can decide: (nakanaka kimerarenai), I just can't decide. Same form as the passive.

plain決められるkimerareru
polite決められますkimeraremasu
plain negative決められないkimerarenai
polite negative決められませんkimeraremasen

Passive

受身形

Being decided or set: (kisoku de kimerarete iru), it is set by the rules. Same form as the potential.

plain決められるkimerareru
polite決められますkimeraremasu
plain negative決められないkimerarenai
polite negative決められませんkimeraremasen

Causative

使役形

Letting someone decide: (watashi ni kimesasete kudasai), please let me decide.

plain決めさせるkimesaseru
polite決めさせますkimesasemasu
plain negative決めさせないkimesasenai
polite negative決めさせませんkimesasemasen

Conditional

条件形

If: ~ば for general conditions, ~たら for “if” and “when, once”, ~なければ for “if not”.

-ba決めればkimereba
-tara決めたらkimetara
-nakereba (if not)決めなければkimenakereba

Examples

  • 旅行の日にちを決めましょう。Ryokō no hinichi o kimemashō.Let's decide the dates for the trip.
  • これに決めました。Kore ni kimemashita.I've decided on this one.
  • それは会社の規則で決められています。Sore wa kaisha no kisoku de kimerarete imasu.That's set by company rules.