Attaening or Attaining: How To spell?

The word Attaening is misspelled against Attaining, which is present continuous of "Attain"

Word contains consecutive vowels 'AI' in between alphabets att & ning is misspelled as 'AE'
Wrong Spelling: att-ae-ning
Correct Spelling: att-ai-ning
Find more wrongly spelled words of Attaining to spell it well.