我想,这里,你是想问宾语从句：
How long have you been married变化：
I don't know how long you have been married.
发现规律了吧：
宾语从句,（它并非是疑问句,所以）顺序为疑问词+主语+谓语部分.
而特殊疑问句 顺序为疑问词+助动词、系动词+主语+谓语部分.
明白了吧?
英语名词从句怎么弄啊,谁能教教我.就像这样的who are they?应该是：I do
我想,这里,你是想问宾语从句：
How long have you been married变化：
I don't know how long you have been married.
发现规律了吧：
宾语从句,（它并非是疑问句,所以）顺序为疑问词+主语+谓语部分.
而特殊疑问句 顺序为疑问词+助动词、系动词+主语+谓语部分.
明白了吧?