Breining or Braining: How To spell?

The word Breining is misspelled against Braining, which is present continuous of "Brain"

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

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