I have the following sentence.

Notify the persons before 30 days

How can I create a question for this sentence?

Before how many days the persons should be notified?

Am I correct?

To make the question clearer: Suppose the Identity Card of a person is going to expire next month. The system needs to inform the person before 30 days. Does the word within match my requirement?


No. Currently both sentences are incorrect. Firstly, "persons" is not the correct plural of "person". You probably want to use the word "people" or the singular "person".

For the first sentence, try something like this:

Notify the person within 30 days


Notify the people within 30 days

You want the word "within" because you're relating to an implied time range (because it's 30 days from now), rather than an absolute date.

If you want to use before, you have to rephrase the sentence slightly:

Notify the person before he gets back from lunch

Notify the CEO before the 5th of February.

To turn it into a question, you need to alter the sentence thus:

Within how many days should the person be notified?

  • OF course you could always go all out and ask, "What should I do to who when?" ;-) – Jim Feb 12 '13 at 7:58
  • .... to whom :) – Matt Feb 12 '13 at 8:01
  • yep, technically... – Jim Feb 12 '13 at 8:02
  • How about "Within how many days the person should be notified ?" – Rauf Feb 12 '13 at 8:19
  • 3
    @Rauf A better word-order is "Within how many days should the person be notified?". Note that a computer can also state "Within how many days should I notify the person?". See also ux.stackexchange.com. – gerrit Feb 12 '13 at 8:48

You could take the help of 'in advance' in this situation.

"How many days in advance can I notify you?"

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