Portculising or Portcullising: How To spell?

The word Portculising is misspelled against Portcullising, which is present continuous of "Portcullis"

Portcullising has double "ll" is mispronounced as "l"
Remember double 'LL' in between the strings portcu & ising which should not be misspelled with single 'L'
Wrong Spelling:  portcu-l-ising 
Correct Spelling:  portcu-ll-ising 
Check more misspelled words of Portcullising to spell it correct.