Clutering or Cluttering: How To spell?

The word Clutering is misspelled against Cluttering, which is present continuous of "Clutter"

Cluttering has double "tt" is mispronounced as "t"
Remember double 'TT' in between the strings clu & ering which should not be misspelled with single 'T'
Wrong Spelling: clu-t-ering
Correct Spelling: clu-tt-ering
Check more misspelled words of Cluttering to spell it correct.