The word Canvased is misspelled against Canvassed, which is past tense of "Canvass"
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Canvassed has double "ss" is mispronounced as "s"
Remember double 'SS' in between the strings canva & ed which should not be misspelled with single 'S'
Wrong Spelling:  canva-s-ed 
Correct Spelling:  canva-ss-ed 
Explore spell check of Canvassed to spell without errors.