Apperteined or Appertained: How To spell?

The word Apperteined is misspelled against Appertained, which is past tense of "Appertain"

Word contains consecutive vowels 'AI' in between alphabets appert & ned is misspelled as 'EI'
Wrong Spelling:  appert-ei-ned 
Correct Spelling:  appert-ai-ned 
Find more wrongly spelled words of Appertained to spell it well.

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