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Sentence analysis
7Spans
Sentence
Span Details
地下鉄道
subway; metro; underground railwaynoun
の
possession, attribution, nominalizer, or nominal linkergrammar
建設
construction; building; establishmentnoun, suru verb
が
subject markergrammar
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
ongoing or resultant state-> ているgrammar
ます。
polite non-pastgrammar