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Sentence analysis
9Spans
Sentence
Span Details
掘削
excavation; diggingnoun, suru verb
作業員
worker; laborernoun
が
subject markergrammar
トンネル
tunnel; tunnel through a potential barrier; letting a grounder go through one's legsnoun, suru verb
工事
construction work; constructionnoun, suru verb
に
direction, time, indirect object, or target markergrammar
従事
engage in; be involved in; pursuenoun, suru verb
し
light/support verb with a noun or noun-like phrase-> するgrammar
ている。
ongoing or resultant stategrammar