He had undergone an operation vs he had underwent an operation

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he had undergone an operation is the most popular phrase on the web. 

he had underwent an operation

11,350 results on the web

he had undergone an operation

159,100 results on the web

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Some examples and use cases from the internet:

Some examples and use cases from the internet:

  • year
  • old sister, as her illness was not responding to standard forms of treatment and she was at risk of dying.
  • year
  • 78
  • In 2003, the patient underwent an operation to transplant hematopoietic stem cells from her two
  • which would have been applicable to the temporary export goods if they had been imported into the Member State concerned from the country where they underwent the processing operation or the last such operation.
  • old Mykolas Burokevicius, who has been held in prison in Vilnius for 12 years for his political views and activities, underwent a complicated heart operation on 25 November.
  • He recently underwent an operation for appendicitis and raced against a tremendous physical handicap.
  • Anteo had undergone an operation on his tongue to reshape the spaces of his mouth to approximately coincide with the proportions of the singing apparatus of the starling.
  • 'Prepared fishery products' means unprocessed fishery products that have undergone an operation affecting their anatomical wholeness, such as gutting, heading, slicing, filleting, and chopping.
  • Our colleague, Mr Brok, has undergone an operation.
  • have not undergone operations there other than unloading and reloading.
  • How would you feel if you had undergone such an operation?
  • "Prepared fishery products" means unprocessed fishery products that have undergone an operation affecting their anatomical wholeness, such as gutting, heading, slicing, filleting, and chopping.
  • 5. 'prepared products' means any fishery product which has undergone an operation affecting its anatomical wholeness, such as gutting, heading, slicing, filleting, chopping, etc.;
  • 'prepared products' means any fishery product which has undergone an operation affecting its anatomical wholeness, such as gutting, heading, slicing, filleting, chopping, etc.;

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