Hufing or Huffing: How To spell?

The word Hufing is misspelled against Huffing, which is present continuous of "Huff"

Huffing has double "ff" is mispronounced as "f"
Remember double 'FF' in between the strings Hu & ing which should not be misspelled with single 'F'
Wrong Spelling: Hu-f-ing
Correct Spelling: Hu-ff-ing
Check more misspelled words of Huffing to spell it correct.