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