The word Triled is misspelled against Trilled, which is past tense of "Trill"
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Trilled has double "ll" is mispronounced as "l"
Remember double 'LL' in between the strings tri & ed which should not be misspelled with single 'L'
Wrong Spelling:  tri-l-ed 
Correct Spelling:  tri-ll-ed 
Find more wrongly spelled words of Trilled to spell it well.