Abstening or Abstaining: How To spell?

The word Abstening is misspelled against Abstaining, which is present continuous of "Abstain"

Word contains consecutive vowels 'AI' in between alphabets abst & ning is misspelled as 'E'
Wrong Spelling:  abst-e-ning 
Correct Spelling:  abst-ai-ning 
Find more wrongly spelled words of Abstaining to spell it well.

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