The word Dubed is misspelled against Dubbed, which is past tense of "Dub"
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Dubbed has double "bb" is mispronounced as "b"
Remember double 'BB' in between the strings Du & ed which should not be misspelled with single 'B'
Wrong Spelling:  Du-b-ed 
Correct Spelling:  Du-bb-ed 
Check more misspelled words of Dubbed to spell it correct.