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Sentence analysis
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Sentence
Span Details
昨夜、
last night; yesterday eveningnoun, adverb
勉強中
while studying; in the middle of studyingexpression
に
direction, time, indirect object, or target markergrammar
寝落ち
falling asleep while doing something; dozing off mid-activitynoun, suru verb
した。
light/support verb with a noun or noun-like phrase-> するgrammar