Geunsaying or Gainsaying: How To spell?

The word Geunsaying is misspelled against Gainsaying, which is present continuous of "Gainsay"

Word contains consecutive vowels 'AI' in between alphabets g & nsaying is misspelled as 'EU'
Wrong Spelling:  g-eu-nsaying 
Correct Spelling:  g-ai-nsaying 
Check more misspelled words of Gainsaying to spell it correct.

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