Stepening or Steepening: How To spell?

The word Stepening is misspelled against Steepening, which is present continuous of "Steepen"

Steepening has double "ee" is mispronounced as "e"
Remember double 'EE' in between the strings St & pening which should not be misspelled with single 'E'
Wrong Spelling: St-e-pening
Correct Spelling: St-ee-pening
Find more wrongly spelled words of Steepening to spell it well.