Didn't I set the alarm?

[jasonree123456]

How to make the sentence

"I don't have set the alarm" into question sentence?
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Didn't I set the alarm?

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[Barb_D]

How to make the sentence

"I don't have set the alarm" into question sentence?
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Didn't I set the alarm?

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Your original sentence is not correct. I haven't set the alarm. I didn't set the alarm.
Did I set the alarm? Have I set the alarm? (Who would be able to answer this besides you?)