Ascertaoning or Ascertaining: How To spell?

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

Word contains consecutive vowels 'AI' in between alphabets ascert & ning is misspelled as 'AO'
Wrong Spelling:  ascert-ao-ning 
Correct Spelling:  ascert-ai-ning 
Find more incorrect spellings of Ascertaining to spell right way.

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