Verb (nai-stem) + ずにはおかない

[Cannot help but; will inevitably; is bound to]

Connection: Verb (nai-stem) + ずにはおかない (する → せずにはおかない)

Usage: Expresses that something will inevitably happen or that a strong natural force compels an action. Used for emotions, reactions, or consequences that are unavoidable. Often describes situations where the subject or an external force cannot resist causing a result.

Key nuance: Focuses on the inevitability of the result — the force is so strong it cannot be left undone.

Examples:

この映画は観る者を感動させずにはおかない。(This movie is bound to move anyone who watches it.)

彼の才能は人々を驚かせずにはおかない。(His talent inevitably astonishes people.)

不正が発覚すれば、社会に影響を与えずにはおかない。(If the fraud is uncovered, it will inevitably affect society.)