Comissioning or Commissioning: How To spell?
The word Comissioning is misspelled against Commissioning, which is present continuous of "Commission"
Commissioning has double "mm" is mispronounced as "m"Remember double 'MM' in between the strings co & issioning which should not be misspelled with single 'M'
Wrong Spelling:  co-m-issioning  Correct Spelling:  co-mm-issioning 
Find more incorrect spellings of Commissioning to spell right way.