The word Retreiting is misspelled against Retreating, which is present continuous of "Retreat"
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Retreating has vowels 'ea' together mispronounced as 'ei'
Word contains consecutive vowels 'EA' in between alphabets retr & ting is misspelled as 'EI'
Wrong Spelling:  retr-ei-ting 
Correct Spelling:  retr-ea-ting 
Find more wrongly spelled words of Retreating to spell it well.