The word Tifing is misspelled against Tiffing, which is present continuous of "Tiff"
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Tiffing has double "ff" is mispronounced as "f"
Remember double 'FF' in between the strings Ti & ing which should not be misspelled with single 'F'
Wrong Spelling: Ti-f-ing
Correct Spelling: Ti-ff-ing
Find more wrongly spelled words of Tiffing to spell it well.