JLPT N3
〜に決まっている
Because she got such an expensive-looking ring, she's definitely going to be happy.
📖 解説とニュアンス
英語の解説
The grammar pattern "～に決まっている" (ni kimatte iru) expresses a very strong conviction or certainty about something. It means "it's absolutely certain that," "it must be," or "there's no doubt that." It indicates the speaker's firm belief based on some evidence or logic, implying that the conclusion is obvious.
日本語の解説
根拠に基づいて、間違いなくそうだろうと確信している時に使います。客観的な状況や事実から考えて、当然そうなるという強い断定を表します。
📝 実践例文
あんなに高そうな指輪をもらったんだから、彼女は喜ぶ「に決まっている」よ。
Because she got such an expensive-looking ring, she's definitely going to be happy.
理解度テスト
本番レベルの問題で「〜に決まっている」の定着度を確認しよう
あんなに高そうな指輪をもらったんだから、彼女は喜ぶ（ ）よ。
🎉 正解 / Correct!
解説 (JP): 根拠に基づいて、間違いなくそうだろうと確信している時に使います。客観的な状況や事実から考えて、当然そうなるという強い断定を表します。\n\nCommon Mistakes:\n❌ だけあって: You use 'だけあって' to say something makes sense AFTER seeing it (e.g., 'As expected, she is happy'). If you are just guessing her reaction beforehand, 'に決まっている' works best.\n❌ からには: This expresses a strong determination ('Since I gave her a ring, I will make her happy!'). It doesn't connect well to predicting HER reaction.\n❌ かねない: Oh no! 'かねない' is only used for BAD possibilities ('She might get angry'). Giving someone an expensive ring should result in happiness, so use 'に決まっている'!
Explanation (EN): The grammar pattern \"～に決まっている\" (ni kimatte iru) expresses a very strong conviction or certainty about something. It means \"it's absolutely certain that,\" \"it must be,\" or \"there's no doubt that.\" It indicates the speaker's firm belief based on some evidence or logic, implying that the conclusion is obvious.\n\nCommon Mistakes:\n❌ だけあって: You use 'だけあって' to say something makes sense AFTER seeing it (e.g., 'As expected, she is happy'). If you are just guessing her reaction beforehand, 'に決まっている' works best.\n❌ からには: This expresses a strong determination ('Since I gave her a ring, I will make her happy!'). It doesn't connect well to predicting HER reaction.\n❌ かねない: Oh no! 'かねない' is only used for BAD possibilities ('She might get angry'). Giving someone an expensive ring should result in happiness, so use 'に決まっている'!
Explanation (EN): The grammar pattern \"～に決まっている\" (ni kimatte iru) expresses a very strong conviction or certainty about something. It means \"it's absolutely certain that,\" \"it must be,\" or \"there's no doubt that.\" It indicates the speaker's firm belief based on some evidence or logic, implying that the conclusion is obvious.\n\nCommon Mistakes:\n❌ だけあって: You use 'だけあって' to say something makes sense AFTER seeing it (e.g., 'As expected, she is happy'). If you are just guessing her reaction beforehand, 'に決まっている' works best.\n❌ からには: This expresses a strong determination ('Since I gave her a ring, I will make her happy!'). It doesn't connect well to predicting HER reaction.\n❌ かねない: Oh no! 'かねない' is only used for BAD possibilities ('She might get angry'). Giving someone an expensive ring should result in happiness, so use 'に決まっている'!
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