Ascertaening or Ascertaining: How To spell?

The word Ascertaening is misspelled against Ascertaining, which is present continuous of "Ascertain"

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