AnalyzerSentence analysis5SpansSentence常に警戒が必要です。1000 character limitAnalyzeSentence常つねに警けい戒かいが必ひつ要ようです。Span Details常つねにalways; constantly; at all timesadverb警けい戒かいvigilance; caution; alertness; precaution; being on guardnoun, suru verbがsubject markergrammar必ひつ要ようnecessary; needed; essential; necessity; need; requirementna-adjective, nounです。be; is; arecopula, auxiliary出洲ですspit of land; sandspit