AnalyzerSentence analysis6SpansSentence彼は一つも間違えなかった。1000 character limitAnalyzeSentence彼かれは一ひとつも間ま違ちがえなかった。Span Details彼かれhe; him; boyfriendpronounはtopic markergrammar一ひとつも(not) a single one; (not) any; (not) at alladverb間ま違ちがえmake a mistake; get wrong; do incorrectly; mistake A for B; confuse-> 間違えるichidan verbなかっnegative auxiliary-> ないgrammarた。past tense or completed actiongrammar