Suposing or Supposing: How To spell?
The word Suposing is misspelled against Supposing, which is present continuous of "Suppose"
Supposing has double "pp" is mispronounced as "p"Remember double 'PP' in between the strings su & osing which should not be misspelled with single 'P'
Wrong Spelling:  su-p-osing  Correct Spelling:  su-pp-osing 
Check more misspelled words of Supposing to spell it correct.