Ascertaen or Ascertain: How To spell?

The word Ascertaen is misspelled against Ascertain, meaning "get to know"

Word contains consecutive vowels 'AI' in between alphabets ascert & n is misspelled as 'AE'
Wrong Spelling:  ascert-ae-n 
Correct Spelling:  ascert-ai-n 
Explore spell check of Ascertain to spell without errors.

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