AnalyzerSentence analysis5SpansSentence彼は一心に勉強した。1000 character limitAnalyzeSentence彼かれは一いっ心しんに勉べん強きょうした。Span Details彼かれhe; him; boyfriendpronounはtopic markergrammar一いっ心しんにwholeheartedly; single-mindedly; fervently; intentlyadverb勉べん強きょうstudy; learning; diligence; hard work; effort; experience; knowledge; lesson; discount; price reductionnoun, suru verbした。light/support verb with a noun or noun-like phrase-> するgrammar