Clased or Classed: How To spell?

The word Clased is misspelled against Classed, which is past tense of "Class"

Classed has double "ss" is mispronounced as "s"
Remember double 'SS' in between the strings cla & ed which should not be misspelled with single 'S'
Wrong Spelling: cla-s-ed
Correct Spelling: cla-ss-ed
Explore spell check of Classed to spell without errors.