The word Extiling is misspelled against Extilling, which is present continuous of "Extill"
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Extilling has double "ll" is mispronounced as "l"
Remember double 'LL' in between the strings exti & ing which should not be misspelled with single 'L'
Wrong Spelling: exti-l-ing
Correct Spelling: exti-ll-ing
Find more wrongly spelled words of Extilling to spell it well.