The word Suposing is misspelled against Supposing, which is present continuous of "Suppose"
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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.