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