For example, I could ask:

How accurate is that answer?

But would it be correct to say:

How accurate that answer is?

  • Note that to be can very properly appear at the end of an interrogative: "How accurate must my answer be?" Jul 24, 2017 at 20:27

2 Answers 2


The first way is correct.

How accurate is that answer?

The second way could be used as an exclamation but not as a question.

How accurate that answer is!

  • I don't really think you mean exclamation here. It really doesn't rise much beyond observation.
    – Robusto
    Jul 24, 2017 at 21:32
  • @Robusto I did mean that. The ! is an exclamation mark. That is what elevates the sentence format beyond an observation, where it is clumsy. Jul 24, 2017 at 21:38
  • ... an observation would be "That answer is accurate". My answer provides a usage as close as possible to the OP's second phrase. Jul 24, 2017 at 21:49
  • The sentence may stand without an exclamation point. What I am saying is that adding one is not necessary, and is in fact rather ham-handed. You are presenting a false dichotomy here.
    – Robusto
    Jul 24, 2017 at 22:57
  • @Robusto I did not add an exclamation mark. I changed the existing question mark. Jul 25, 2017 at 0:41

The first way is correct.

How accurate is that answer?

The second way would be correct if it was a part of an indirect question. For example:

Could you tell me how accurate that answer is?

One thing to note here is when to put a question mark. You see, when the first part of this complex sentence is not a question then you do not put a question mark at the end.

I am wondering how accurate that answer is.

Or as Weather Vane said, it can be used as an exclamation, but then it is not a question:

How accurate that answer is!

See more: http://www.perfect-english-grammar.com/indirect-questions.html

  • Nice answer (second quote). I considered converting the second thing asked by OP into a more complex question, in my answer, but you found it. Jul 24, 2017 at 20:12

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