The word Duenas is misspelled against Duennas, which is plural of "Duenna"
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Duennas has double "nn" is mispronounced as "n"
Remember double 'NN' in between the strings due & as which should not be misspelled with single 'N'
Wrong Spelling:  due-n-as 
Correct Spelling:  due-nn-as 
Check more misspelled words of Duennas to spell it correct.