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Decoded Slug: ~に決まっている (〜ni kimatte iru)

Japanese JLPT Grammar Point
~に決まっている (〜ni kimatte iru)

~に決まっている (〜ni kimatte iru)

Short explanation:

Express certainty; 'it is obvious', 'it must be', 'no doubt'.

Formation:

Verb-casual + に決まっている, い-Adjective + に決まっている, な-Adjective + だに決まっている, Noun + だに決まっている

Examples:

こんなに暑い日に運動したら、汗をかくに決まっている。
Konna ni atsui hi ni undou shitara, ase wo kaku ni kimatte iru.
It's obvious that you'll sweat if you exercise on such a hot day.
彼が試験に落ちたら、がっかりするに決まっている。
Kare ga shiken ni ochitara, gakkari suru ni kimatte iru.
If he fails the exam, it's obvious he will be disappointed.
彼女はいつも遅れるから、今日も遅れるに決まっている。
Kanojo wa itsumo okureru kara, kyou mo okureru ni kimatte iru.
She's always late, so it's obvious she'll be late today too.
このゲームは楽しいだに決まっている。
Kono geemu wa tanoshii da ni kimatte iru.
It's obvious that this game is fun.

Long explanation:

The ~に決まっている grammar point is used to express certainty or a strong conviction about a situation or event. It can be translated in English as 'it is obvious', 'it must be', or 'no doubt'. The formation differs depending on whether it is used with a verb, い-adjective, な-adjective, or noun.
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