|Structures of questions|
|If there is an auxiliary (helping) verb (be, have, can, will, etc.) we put it before the subject (he, she, I, etc.)||Is anybody in the office?
Have you ever visited London?
What time Will they be here?
|If there is no auxiliary (helping) verb, we put do, does or did before the subject.||Do you know my older brother?
Did he come in time?
|We put wh- words (when, where, why, who, how,etc.) at the beginning of the question.||How long have you been waiting for me?
Where is their office?
Which colour do you like best?
|We don’t use do, does or did when we use what, which, who or whose as the subject.||What happened to you?
Who told you about it?
|Questions – common mistakes|
|Common mistakes||Correct version||Why?|
|What did you mean by saying that?||If there is no auxiliary (helping) verb, we put do, does or didbefore the subject.|
|Do you like this film?|
|Where are you going this afternoon?||We put an auxiliary verb before the subject.|
|Did you read the letter?|
|Who gave you the information?||We don’t use do, does or didwhen we use what, which, whoor whose as the subject.|
|Does he know your sister?||When there is an auxiliary verb, the main verb is in the infinitive form.|
|Where will she study?|
|Can you tell me where I canbuy a good camera?||Word order in indirect question is the same as in a normal sentence: SUBJECT + VERB + …