The word Atending is misspelled against Attending, which is present continuous of "Attend"
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Attending has double "tt" is mispronounced as "t"
Remember double 'TT' in between the strings a & ending which should not be misspelled with single 'T'
Wrong Spelling: a-t-ending
Correct Spelling: a-tt-ending
Find more wrongly spelled words of Attending to spell it well.