The word Regresing is misspelled against Regressing, which is present continuous of "Regress"
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Regressing has double "ss" is mispronounced as "s"
Remember double 'SS' in between the strings regre & ing which should not be misspelled with single 'S'
Wrong Spelling: regre-s-ing
Correct Spelling: regre-ss-ing
Find more wrongly spelled words of Regressing to spell it well.