The word Canvasing is misspelled against Canvassing, which is present continuous of "Canvass"
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Canvassing has double "ss" is mispronounced as "s"
Remember double 'SS' in between the strings canva & ing which should not be misspelled with single 'S'
Wrong Spelling: canva-s-ing
Correct Spelling: canva-ss-ing
Find more wrongly spelled words of Canvassing to spell it well.