Gansaying or Gainsaying: How To spell?

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

Word contains consecutive vowels 'AI' in between alphabets g & nsaying is misspelled as 'A'
Wrong Spelling:  g-a-nsaying 
Correct Spelling:  g-ai-nsaying 
Find more wrongly spelled words of Gainsaying to spell it well.

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