The word Propeling is misspelled against Propelling, which is present continuous of "Propel"
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Propelling has double "ll" is mispronounced as "l"
Remember double 'LL' in between the strings prope & ing which should not be misspelled with single 'L'
Wrong Spelling: prope-l-ing
Correct Spelling: prope-ll-ing
Find more incorrect spellings of Propelling to spell right way.