The word Suposed is misspelled against Supposed, which is past tense of "Suppose"
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Supposed has double "pp" is mispronounced as "p"
Remember double 'PP' in between the strings su & osed which should not be misspelled with single 'P'
Wrong Spelling:  su-p-osed 
Correct Spelling:  su-pp-osed 
Check more misspelled words of Supposed to spell it correct.