The word Proping is misspelled against Propping, which is present continuous of "Prop"
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Propping has double "pp" is mispronounced as "p"
Remember double 'PP' in between the strings pro & ing which should not be misspelled with single 'P'
Wrong Spelling: pro-p-ing
Correct Spelling: pro-pp-ing
Find more incorrect spellings of Propping to spell right way.