not only...but also连接从句时的用法？

请问假如not only...bualso结构连接两个从句，是不是直接将从句视为名词短语或形容词短语，而无需对从句进行倒装呢？如：

Not only what he did but also what he said are correct.

直接将两个what引导的名词性从句视为名词短语，而不需要倒装两个从句。



另外，假如not only...bualso是内嵌到从句中，则需要倒装从句内的结构，如：

The newemployee soon proved that not only was he capable but he could also be trusted.

即that引导的包括not only...bualso结构的从句？

Not only what he did but also what he said iscorrect.

名词性从句，在句中其用途等于一个名词。被 not only...but also...连接后，本身没办法形成倒装， not only A but also B （A、B代表两个名词）。

The new employee soon proved that not only was he capable but he could also be trusted.

that 后的宾语从句，对于包括的not only...but also... 而言，是一个独立的句子。所以，根据倒装规则进行倒装即可。