The word Stemed is misspelled against Stemmed, which is past tense of "Stem"
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Stemmed has double "mm" is mispronounced as "m"
Remember double 'MM' in between the strings ste & ed which should not be misspelled with single 'M'
Wrong Spelling: ste-m-ed
Correct Spelling: ste-mm-ed
Explore spell check of Stemmed to spell without errors.