Questions – Form

Questions –word order

In order to make a question, we need to invert the subject and the auxiliary (be, have, etc.) or the modal verb (can, could, should, etc.). If there isn’t a modal or auxiliary verb in the sentence, we use do/does with the present or did with the past.
 

Questions followed by a preposition

In informal or spoken English, when a question word needs a preposition, we put the preposition at the end of the question (after the verb or after verb + object if there is an object). We don’t use the preposition at the beginning.

In more formal English, prepositions can be used before question words. Compare:

Note that we use whom instead of who after a preposition.
 

Negative questions

We use a negative verb in questions to ask the listener for confirmation about something that we think is true.

We can also use a negative question to show surprise or annoyance.

When we use a negative question without the contracted form of the verb, we should put not after the subject.

 

Subject questions

When we ask about the subject of a sentence with question words such as who, what, which, or how much/many, we don’t use do/does or did after the question word (we don’t invert subject and auxiliary or modal verb).

 

Indirect or embedded questions.

We normally use indirect questions when we want to be more polite. We begin the question with expressions such as Can you tell me …? Could you tell me …? Do you know …? Would you mind telling me … ? 

In indirect questions the order is subject + verb.

There are other expressions that follow the same rule:

For yes-no questions (when there is NO question word), we can use both if or whether.