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Gillyflower Posted 6 years ago
Grammar

Has been shown or has shown

Hi,

Coenzyme Q10, having potent antioxidant and anti-inflammatory pharmacological properties, has recently been shown to be a safe and promising agent in maintaining remission of ulcerative colitis.

Which one is correct? has been shown or has shown?

Thanks!

  

Top answer

Only "has been shown" is correct. It means: That coenzyme has been shown/demonstrated (by researchers) to be safe ... The coenzyme is passive .

— Teechr

  • Only "has been shown" is correct.
  • It means: That coenzyme has been shown/demonstrated (by researchers) to be safe ...
  • The coenzyme is passive .
  • It cannot do the action (show/demonstrate) itself; someone demonstrates/shows it to be safe.
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1 Answers
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Only "has been shown" is correct.

It means: That coenzyme has been shown/demonstrated (by researchers) to be safe ...

The coenzyme is passive. It cannot do the action (show/demonstrate) itself; someone demonstrates/shows it to be safe.

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