connective N1 rare writtenliterary
〜ならいざ知らず — I don't know about ~
〜ならいざ知らず
A full written guide for 〜ならいざ知らず is on the way.
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See 〜ならいざ知らず in real sentences
Jengo shows 〜ならいざ知らず the way you actually meet it: inside real Japanese sentences, so it sticks instead of staying an abstract rule.
Study it in JengoSources Compiled from published Japanese grammar references.