The word Stumed is misspelled against Stummed, which is past tense of "Stum"
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Stummed has double "mm" is mispronounced as "m"
Remember double 'MM' in between the strings stu & ed which should not be misspelled with single 'M'
Wrong Spelling: stu-m-ed
Correct Spelling: stu-mm-ed
Check more misspelled words of Stummed to spell it correct.