must be ~, no doubt ~

Intermediate

20-30 min

common

Expert Reviewed

Explanation

Expresses strong conviction that something is true.

[Plain form] + に違いない

彼は成功するに違いない。

Kare wa seikou suru ni chigai nai.

He must succeed. / There's no doubt he'll succeed.

この問題は難しいに違いありません。

Kono mondai wa muzukashii ni chigai arimasen.

This problem must be difficult.

Stronger certainty than ～だろう or ～かもしれない.

～に違いない

must be ~, no doubt that ~, undoubtedly

～に関して/関する

regarding ~, concerning ~, about ~

～について/つい

about ~, concerning ~

～に伴って/伴い/伴う

along with ~, as ~ (changes)

JLPTBooks Editorial Team

Japanese Language Education Specialists

Last updated: Jan 10

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