AnalyzerSentence analysis4SpansSentence努力を惜しまない。1000 character limitAnalyzeSentence努ど力りょくを惜おしまない。Span Details努ど力りょくeffort; hard work; endeavornoun, suru verbをobject markergrammar惜おしまspare; grudge; be sparing with; be frugal; be stingy; regret; lament; be reluctant (to do); be unwilling; value; prize; hold dear; love; cherish-> 惜しむgodan verbない。negative auxiliarygrammar