The word Tuned is misspelled against Tunned, which is past tense of "Tun"
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Tunned has double "nn" is mispronounced as "n"
Remember double 'NN' in between the strings tu & ed which should not be misspelled with single 'N'
Wrong Spelling: tu-n-ed
Correct Spelling: tu-nn-ed
Check more misspelled words of Tunned to spell it correct.