AnalyzerSentence analysis4SpansSentence以前は教師だった。1000 character limitAnalyzeSentence以い前ぜんは教きょう師しだった。Span Details以い前ぜんbefore; prior to; ago; previously; the past; former timesnoun, noun suffix, adverbはtopic markergrammar教きょう師しteacher; instructornounだった。past copulagrammar