Shudering or Shuddering: How To spell?
The word Shudering is misspelled against Shuddering, which is present continuous of "Shudder"
Shuddering has double "dd" is mispronounced as "d"Remember double 'DD' in between the strings Shu & ering which should not be misspelled with single 'D'
Wrong Spelling:  Shu-d-ering  Correct Spelling:  Shu-dd-ering 
Check more misspelled words of Shuddering to spell it correct.