Bruning or Braining: How To spell?

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

Word contains consecutive vowels 'AI' in between alphabets br & ning is misspelled as 'U'
Wrong Spelling:  br-u-ning 
Correct Spelling:  br-ai-ning 
Check more misspelled words of Braining to spell it correct.

You might be interested to know

Chunwork or Chainwork?

Construned or Constrained?

Duly or Daily?