Structure
Verb［る］+ ことにする
Verb［ない］+ ことにする
Détails
Niveau de langue
Standard
À propos de ことにする
In a similar way to how にする means to 'decide on' something, ことにする means to decide on a situation, or course of action. This grammar point is a combination of 事 'thing' in its role as a nominalizer (a word that creates a noun-phrase), and にする 'to make it (A)'. Literally this grammar structure can be translated as 'to do (A)', or 'to make it (A)'.
ことにする may be used with verb-phrases that are either in the affirmative, or negative (using ない) forms. As こと itself is a noun, the verb (or auxiliary verb) that comes before it will need to be in its attributive form.
にする is a strong expression, which tends to make the speaker sound like they are fairly resolute in their decision.
Caution
The する in にする itself may also be seen using ない, to mean that someone has decided 'against' doing something. Due to this, careful attention will need to be paid to the overall structure of the sentence.
Synonymes
Contenu lié
Exemples
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今日はエイプリルフールだからウソしか言わない事にする。
Since today is April Fool's, I've decided to only tell lies.
あの場所で、記念写真を撮る事にします。
We've decided to take the commemorative photo at that place.
九時に終わるか分からなかったが、早めに帰る事にしました。
I didn't know if it would finish at nine but, I decided to go home in advance.
これ以上言わない事にします。もし何か言ったら彼女を怒らせるでしょう。
I have decided not to say anything else. If I say something, it would piss her off.
この商品、無料で配る事にします。
I have decided to hand out this product for free.
Phrases personnalisées
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ことにする – Discussion Grammaire
Réponses les plus récentes (9 au total)
Chrispy
Any update when this grammar point will be added? It should be N2/N1 (according to the Try N2 book or JLPT Sensei).
clover1
I’ve run into some sources which say (example) that ことにしている means “do something as a regular practice,” while ことにする or ことにした is “decide(d) to do.”
I’m curious about how the difference in tenses play out in this example:
Meatdog
The difference between 事にする and 事になる?
Looking at the examples, is it true that 事ことにする would be used for someone specific, like me,they,her,she,them for example? And ことになる would be used for some indirect unmentioned person or thing that did the deciding?
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