The word Colapsing is misspelled against Collapsing, which is present continuous of "Collapse"
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Collapsing has double "ll" is mispronounced as "l"
Remember double 'LL' in between the strings co & apsing which should not be misspelled with single 'L'
Wrong Spelling: co-l-apsing
Correct Spelling: co-ll-apsing
Find more incorrect spellings of Collapsing to spell right way.