Decreieng or Decreeing: How To spell?

The word Decreieng is misspelled against Decreeing, which is present continuous of "Decree"

Word contains consecutive vowels 'EI' in between alphabets decre & ng is misspelled as 'IE'
Wrong Spelling:  decre-ie-ng 
Correct Spelling:  decre-ei-ng 
Find more wrongly spelled words of Decreeing to spell it well.