Pertoning or Pertaining: How To spell?

The word Pertoning is misspelled against Pertaining, which is present continuous of "Pertain"

Word contains consecutive vowels 'AI' in between alphabets pert & ning is misspelled as 'O'
Wrong Spelling:  pert-o-ning 
Correct Spelling:  pert-ai-ning 
Find more incorrect spellings of Pertaining to spell right way.

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