Asembling or Assembling: How To spell?
The word Asembling is misspelled against Assembling, which is present continuous of "Assemble"
Assembling has double "ss" is mispronounced as "s"Remember double 'SS' in between the strings a & embling which should not be misspelled with single 'S'
Wrong Spelling:  a-s-embling  Correct Spelling:  a-ss-embling 
Find more wrongly spelled words of Assembling to spell it well.