The word Cubing is misspelled against Cubbing, which is present continuous of "Cub"
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Cubbing has double "bb" is mispronounced as "b"
Remember double 'BB' in between the strings Cu & ing which should not be misspelled with single 'B'
Wrong Spelling: Cu-b-ing
Correct Spelling: Cu-bb-ing
Check more misspelled words of Cubbing to spell it correct.