Sumoning or Summoning: How To spell?
The word Sumoning is misspelled against Summoning, which is present continuous of "Summon"
Summoning has double "mm" is mispronounced as "m"Remember double 'MM' in between the strings su & oning which should not be misspelled with single 'M'
Wrong Spelling:  su-m-oning  Correct Spelling:  su-mm-oning 
Check more misspelled words of Summoning to spell it correct.