64. Indirect questions 

The indirect question is really not a question at all. It has no inversion of subject and predicate as in a direct question. It does not use the auxiliary do either.

 Compare: 

• Direct: Where are you going?

 • Indirect: He asked me where I was going. (NOT He asked me where was I going?) 

 • Direct: When does he propose to start? 

• Indirect: I want to know when he proposes to start. (NOT I want to know when does he propose to start?) Note that we do not use a question mark at the end of an indirect question.