AnonymousWould you tell me why the present continuous after 'as' isn't good?
It's not a matter of continuous or not. It's a matter of keeping consistent with how questions are made. Invert the subject and operator.
Correct syntax for a question: Has my brother been studying English?
Incorrect syntax: Has been my brother studying English? (Too many verbs before the subject.)
The same principle applies to other constructions in English, including the one we're discussing here in this thread.
CJ