The word Matered is misspelled against Mattered, which is past tense of "Matter"
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Mattered has double "tt" is mispronounced as "t"
Remember double 'TT' in between the strings ma & ered which should not be misspelled with single 'T'
Wrong Spelling:  ma-t-ered 
Correct Spelling:  ma-tt-ered 
Explore spell check of Mattered to spell without errors.