JLPT N1
～ないことには
unless ~; if ~ doesn't happen, then
Structure / Usage
Verb (ない-form) + ことには
Example Sentences
実際に見ないことには、信じられない。
Unless I see it for myself, I can't believe it.
本人に聞かないことには、真相は分からない。
Unless we ask the person directly, we won't know the truth.
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