The word Scofing is misspelled against Scoffing, which is present continuous of "Scoff"
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Scoffing has double "ff" is mispronounced as "f"
Remember double 'FF' in between the strings Sco & ing which should not be misspelled with single 'F'
Wrong Spelling:  Sco-f-ing 
Correct Spelling:  Sco-ff-ing 
Find more incorrect spellings of Scoffing to spell right way.