Aggresing or Aggressing: How To spell?
The word Aggresing is misspelled against Aggressing, which is present continuous of "Aggress"
Aggressing has double "ss" is mispronounced as "s"Remember double 'SS' in between the strings aggre & ing which should not be misspelled with single 'S'
Wrong Spelling:  aggre-s-ing  Correct Spelling:  aggre-ss-ing 
Find more wrongly spelled words of Aggressing to spell it well.