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