The word Opressing is misspelled against Oppressing, which is present continuous of "Oppress"
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Oppressing has double "pp" is mispronounced as "p"
Remember double 'PP' in between the strings o & ressing which should not be misspelled with single 'P'
Wrong Spelling:  o-p-ressing 
Correct Spelling:  o-pp-ressing 
Find more wrongly spelled words of Oppressing to spell it well.