Regning or Reigning: How To spell?

The word Regning is misspelled against Reigning, which is present continuous of "Reign"

Word contains consecutive vowels 'EI' in between alphabets r & gning is misspelled as 'E' as letter 'I' is phonetically ignored
Wrong Spelling:  r-e-gning 
Correct Spelling:  r-ei-gning 
Find more wrongly spelled words of Reigning to spell it well.