JLPT N3

～に違いない

Must be; I'm sure that; no doubt that

Structure

Verb plain form + に違いない / Noun + に違いない / い-adjective + に違いない / な-adjective + に違いない

How it works

This grammar point indicates a strong conviction or certainty based on evidence, reasoning, or personal judgment. It suggests that there is very little doubt about the truth of a statement.

Examples

あの表情からすると、彼が犯人に違いない。

Judging from that expression, he must be the culprit.

Common mistakes

Using it for a simple guess; it implies near certainty, not just possibility.

Tip

Think of it as 'there's no mistake' or 'it's undeniable'.

More JLPT N3 grammar

としてに対してについてによってに関してにとってわけだわけがない

See ～に違いない in real Japanese

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