AnalyzerSentence analysis5SpansSentenceスマホを充電しなければならない。1000 character limitAnalyzeSentenceスマホを充じゅう電でんしなければならない。Span Detailsスマホsmartphonenounをobject markergrammar充じゅう電でんcharging; electrical charge; recharge one's batteries; replenish energynoun, 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
