AnalyzerSentence analysis4SpansSentence偉そうな口をきくな。1000 character limitAnalyzeSentence偉えらそうな口くちをきくな。Span Details偉えらそうself-important; pompous; conceitedna-adjectiveなadnominal form of the copula after a na-adjectivegrammar口くちをきくspeak; talk; mediate; act as a go-between; put in a good wordexpression, verbな。do notgrammar