Ascertan or Ascertain: How To spell?

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

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

You might be interested to know

Baler or Bailer?

Blan or Blain?

Captanry or Captainry?