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Sentence analysis
8Spans
Sentence
Span Details
坑道
tunnel; gallery; level; shaft; pitnoun
に
direction, time, indirect object, or target markergrammar
ガス溜まり
gas accumulation; gas pocket; flatulence; abdominal bloatingnoun
が
subject markergrammar
でき
can; be able to; be possible; be good at; do well; be proficient; come into existence; form; appear; be born; get (a friend, free time, etc.); be made; be built; be completed; be ready; grow (crops); be produced; be mature; be well-balanced; be of fine character; be by nature; be born ...; become involved (sexually); become intimate; take up with; get pregnant-> 出来るichidan verb
て
connective te-formgrammar
危険
danger; hazard; dangerous; risk; chance of harmnoun, na-adjective
だった。
past copulagrammar