The word Dofed is misspelled against Doffed, which is past tense of "Doff"
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Doffed has double "ff" is mispronounced as "f"
Remember double 'FF' in between the strings Do & ed which should not be misspelled with single 'F'
Wrong Spelling:  Do-f-ed 
Correct Spelling:  Do-ff-ed 
Find more incorrect spellings of Doffed to spell right way.