I have a question

Which bus goes to the city? VS which bus does go to the city?

Which one is correct? I'm so confused

  • 2
    They are both correct. It depends on the context. The first is used when trying to find the right bus. The second after being told that the one you thought went there, doesn’t.
    – Jim
    Feb 6, 2017 at 1:33

2 Answers 2


"Which bus goes to the city?" is the correct one in the normal context. But for an emphatic purpose or insisting on an answer, "Tell me, which bus does go to the city?" is also possible. If the question words (What, Which, Who, Whose, How many etc) come as the subject or subject part of the question, normally forms of do (do, does, did) are not used. But forms of do can be used for emphasis after the subject question words. A screen shot from the Practical English Usage is here:


Your first sentence is correct and is preferable

Which bus goes to the city?

In your second sentence does is not necessary and is redundant since "does go" = "go", though one might use "does" for emphasis, though it is not necessary

Which bus does go to the city?

However, does is necessary for the negative

Which bus does not go to the city?

  • Also when asking about a specific bus you would say: "Does this bus go to the city?"
    – Nathan
    Feb 6, 2017 at 3:15
  • @Nathan That's exactly what one would ask "Does this bus go to someplace?"
    – Peter
    Feb 6, 2017 at 16:43

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