Presing or Pressing: How To spell?
The word Presing is misspelled against Pressing, an adjective meaning "Urgent; exacting; importunate; as, a pressing necessity."
Pressing has double "ss" is mispronounced as "s"Remember double 'SS' in between the strings pre & ing which should not be misspelled with single 'S'
Wrong Spelling:  pre-s-ing  Correct Spelling:  pre-ss-ing 
Find more wrongly spelled words of Pressing to spell it well.