「〜に決まっている」—— Expressing Certainty
Explanation
「〜に決まっている」 (ni kimatteiru) is a Japanese grammatical structure used to express certainty and confident judgment, meaning "it must be..." or "it's definitely...". In spoken language, the 「いる」 is sometimes omitted, becoming 「〜に決まってる」. This expression allows the speaker to strongly convey their judgment or assertion.
Grammar Pattern
| Grammar Point | Connection | Explanation |
|---|---|---|
| 〜に決まっている | Plain form of verbs, plain form of い-adjectives, stem of な-adjectives, nouns + に決まっている | Used to express strong certainty or assertion, conveying the speaker's confident judgment. |
Basic Usage and Examples
何 をするにも楽 しいほうがいいに決 まっている。- Nani o suru ni mo tanoshii hou ga ii ni kimatteiru.
- It’s definitely better to have fun no matter what you do.
彼 はどうせ来 ないに決 まっている。- Kare wa douse konai ni kimatteiru.
- He definitely won’t come anyway.
理論 は間違 っていないから、成功 するに決 まっている。- Riron wa machigatte inai kara, seikou suru ni kimatteiru.
- Since the theory isn’t wrong, it’s bound to succeed.
Deep Dive
「〜に決まっている」 is used to express the speaker’s strong certainty or assertion based on common sense or logical reasoning. Its tone is quite strong and is often used in conversations to emphasize the speaker’s confidence. When using this expression, it’s important to consider the context to avoid misunderstandings.
Real-Life Scenarios
- In everyday conversations, using 「〜に決まっている」 can effectively convey the speaker’s confidence and judgment.
- When discussing opinions or refuting others, this expression can strengthen the speaker’s argument.
Summary
「〜に決まっている」 is a practical Japanese expression used to convey strong certainty and assertion. Understanding its connections and usage will help you communicate more accurately in Japanese.