求解释who are you working for 和 who you are working for 的区别

Who are you working for?这是一个疑问句,是独立成句的.
who you are working for:这是一个从句,一般充当主语,宾语或表语,只是句子中的一个成分.（从句一般是不用疑问句语序,而用陈述句语序的.）如
I don‘t know who you are working for.中 who you are working for就是宾语从句.
Who do you work for?（你为谁工作?）一般现在时的特殊疑问句；
Who are you working for?（你正在为谁工作?）现在进行时的特殊疑问句.