not until he had talked to them did he realized he

问题描述:

not until he had talked to them did he realized he
had been wrong.中did是什么成分?

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