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