Bereoned or Berained: How To spell?

The word Bereoned is misspelled against Berained, which is past tense of "Berain"

Word contains consecutive vowels 'AI' in between alphabets ber & ned is misspelled as 'EO'
Wrong Spelling:  ber-eo-ned 
Correct Spelling:  ber-ai-ned 
Find more incorrect spellings of Berained to spell right way.

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