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Viksol1901 Posted 12 years ago
Grammar

sentence structure

Which ones are correct and why: why did he call yesterday? why he called yesterday? /// what have you done? what you have done?
  

Top answer

W hy did he call yesterday? Do you know why he called yesterday? W hat have you done?

  • W hy did he call yesterday?
  • Do you know why he called yesterday?
  • W hat have you done?
  • Do you realize what you have done?
  • All the above are correct.
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2 Answers
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Why did he call yesterday?
Do you know why he called yesterday?
What have you done?
Do you realize what you have done?

All the above are correct.
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viksol1901 Which ones are correct and why: why did he call yesterday? why he called yesterday? /// what have you done? what you have done?
Direct questions, such as those you have posted, have subject and verb inverted compared to their corresponding statement form. Take the last example first:

You have done (something). [This one has

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