not until he had talked to them did he realized he

not until he had talked to them did he realized he

题目
not until he had talked to them did he realized he
had been wrong.中did是什么成分?
答案
是 did he realize 不是 did he realized ,原文有错!
not until he had talked to them 放在句首应该用部分倒装语序,did 在这里是个助动词,谓语的一部分
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