AnalyzerSentence analysis5SpansSentence契約を履行しなければならない。1000 character limitAnalyzeSentence契けい約やくを履り行こうしなければならない。Span Details契けい約やくcontract; agreementnoun, suru verbをobject markergrammar履り行こうfulfillment; performance of an obligation; execution of a contract; implementationnoun, suru verbしlight/support verb with a noun or noun-like phrase-> するgrammar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
