Tubed or Tubbed: How To spell?

The word Tubed is misspelled against Tubbed, which is past tense of "Tub"

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.

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