The word Simering is misspelled against Simmering, which is present continuous of "Simmer"
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Simmering has double "mm" is mispronounced as "m"
Remember double 'MM' in between the strings si & ering which should not be misspelled with single 'M'
Wrong Spelling:  si-m-ering 
Correct Spelling:  si-mm-ering 
Find more wrongly spelled words of Simmering to spell it well.