Cofining or Coffining: How To spell?

The word Cofining is misspelled against Coffining, which is present continuous of "Coffin"

Coffining has double "ff" is mispronounced as "f"
Remember double 'FF' in between the strings Co & ining which should not be misspelled with single 'F'
Wrong Spelling: Co-f-ining
Correct Spelling: Co-ff-ining
Find more incorrect spellings of Coffining to spell right way.