Intentnes or Intentness: How To spell?
The word Intentnes is misspelled against Intentness, a noun meaning "The state or quality of being intent; close application; attention."
Intentness has double 'ss' in the end mispronounced as 's'Remember double 'SS' appears in the end of this word which should not be misspelled with single 'S'
Wrong Spelling:  intentne-s  Correct Spelling:  intentne-ss 
Explore spell check of Intentness to spell without errors.