AnalyzerSentence analysis2SpansSentence約束を守らなければならない。1000 character limitAnalyzeSentence約やく束そくを守まもらなければならない。Span Details約やく束そくを守まもらkeep a promise; keep one's word-> 約束を守るexpression, verbなければならない。must; have togrammarAlso Foundならないならないcannot help feeling; unbearably; irresistibly; must not; should not; must; have to; ought to; cannot; unable to; notoptional
