无论是Nor did还是Nor was都是用于应答否定句表示某人也不是，其意思和用法Neither是一模一样的。

当原来的否定句中有be动词的过去式was或者were时，用Nor was。而当原来的否定句的谓语动词是行为动词时则用Nor did。

如：He wasn't young. -Nor was she.

He didn't sing well. -Nor did she.