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Sentence
Span Details
どこまで
how far; to what extent; up to what point-> 何処までadverb
進ん
advance; go forward; move ahead; precede; go ahead; lead; make progress; improve; deepen; heighten; intensify; be fast (clock); be ahead; gain time; do willingly; do of one's own accord-> 進むgodan verb
でいる
ongoing or resultant state-> ているgrammar