jlpt-boi / JLPT N1 / Grammar / 〜ならいざ知らず
〜ならいざ知らず
「一度だけならいざ知らず」 sets up the classic concession: once is excusable, but repeated occurrences can't be called coincidence.
Tested at JLPT N1 — 10 practice questions below.
Practice 〜ならいざ知らず →〜ならいざ知らず = 'if it is only X, I'll let it pass — but…'. The first clause grants that skipping explanation might be tolerable in emergencies; the main clause then asserts the everyday case is different and must not be excused. Only this pattern produces the concessive logic the two halves require — the distractors express contrast, means, or a range, none of which pits an excusable case against an inexcusable one.
初心者＿＿＿、専門家がこのミスをするとは思えない。
Answer: ならいざ知らず · Try this question →
___ 。
Answer: 趣味 · Try this question →
十年前＿＿＿、今はオンラインで手続きできる。
Answer: ならいざ知らず · Try this question →