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Sentence analysis
5Spans
Sentence
Span Details
先に
previously; before; earlier; formerly; recently; first; before (someone/something else); ahead (of); beforehand; in advance; ahead of timeadverb
誰
whopronoun
か
question or alternative markergrammar
確認
confirmation; verification; checknoun, suru verb
しよう。
light/support verb with a noun or noun-like phrase-> するgrammar