Indirect questions are more polite than direct questions.
Normally they involve a phrase at the beginning of the question.
E.g. Indirect – Excuse me, would you mind telling me where the bank is?
Direct – Where is the bank?
Notice that the word order changes – ‘the bank’ and ‘is’ (main verb) swap places from direct to indirect questions.
*In indirect questions, use the same word order as if you are answering the question:
E.g. – Would you mind telling me where the bank is?
The bank is over there.
Do not use ‘do’ and ‘does’ in the main part of indirect questions.
E.g. Direct question: “Do you like James Bond?
Indirect question: “I was wondering if you like James Bond?
Answer: Yes, I like James Bond.
You can use ‘if’ or ‘whether’ if the sentence can simply be answered ‘yes’ or ‘no’.
E.g. Direct question: “When did it happen?”
Indirect question: Have you got any idea when it happened?
Answer: It happened last night.