The word Struming is misspelled against Strumming, which is present continuous of "Strum"
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Strumming has double "mm" is mispronounced as "m"
Remember double 'MM' in between the strings stru & ing which should not be misspelled with single 'M'
Wrong Spelling:  stru-m-ing 
Correct Spelling:  stru-mm-ing 
Check more misspelled words of Strumming to spell it correct.