Broning or Braining: How To spell?

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

Word contains consecutive vowels 'AI' in between alphabets br & ning is misspelled as 'O'
Wrong Spelling:  br-o-ning 
Correct Spelling:  br-ai-ning 
Find more incorrect spellings of Braining to spell right way.

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