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