Ascertin or Ascertain: How To spell?

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

Word contains consecutive vowels 'AI' in between alphabets ascert & n is misspelled as 'I'
Wrong Spelling:  ascert-i-n 
Correct Spelling:  ascert-ai-n 
Find more wrongly spelled words of Ascertain to spell it well.

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