Do you know where …? / I don’t know why … / Could you tell me what …?, etc.
Where has Tom gone?
Do you know where Tom has gone? (not Do you know where has Tom gone?)
When the question (Where has Tom gone?) is part of a longer sentence (Do you know …? / I don’t know … / Can you tell me …?, etc.), the word order changes. Compare:
– What time is it? Do you know what
– Who are those people? I don’t know who those people are.
– Where can I find Linda? Can you tell me where I can find Linda?
– How much will it cost? Do you have any idea how much it will cost?
Be careful with do/does/did questions. We say:
– What time does the movie begin? Do you know what time the movie begins? (not the movie begins?)
– What do you mean? Please explain what you mean.
– Why did she leave early? I wonder why she left early.
Use if or whether where there is no other question word (what, why, etc.):
– Did anybody see you? Do you know if anybody saw you? or … whether anybody saw you?
He asked me where … (reported questions)
The same changes in word order happen in reported questions. Compare:
direct : The police officer said to us. “Where are you going?”
reported : The police officer asked us where we were going.
direct : Claire asked, “What time do the banks close?”
reported : Claire wanted to know what time the banks closed
In reported questions, the verb usually changes to the past (were, closed, etc.).
Study these examples, You had an interview for a job, and these were some of the questions the interviewer asked you:
What do you do in your space time?
Are you willing to travel?
How long have you been working at your present job?
Can you speak another language?
Wny did you apply for the job?
Do you have a driver’s license?
Later you tell a friend what the interviewer asked you. You use reported speech:
– She asked if (or whether) I was willing to travel.
– She wanted to know what I did in my spare time.
– She asked how long I had been working at my present job.
– She asked why I had applied for the job. (or … why I applied)
– She wanted to know if (or whether) I could speak another language.
– SHe asked if (or whether) I had a driver’s license.