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Sentence analysis
7Spans
Sentence
Span Details
緊急時
emergency; time of emergency; in case of emergencynoun
に
direction, time, indirect object, or target markergrammar
気管切開
tracheotomynoun
が
subject markergrammar
行わ
perform; carry out; conduct; do-> 行うgodan verb
れる
passive voice; suffering passive; potential form; spontaneous occurrence; honorific (sonkeigo)auxiliary verb, auxiliary
ことがある。
have done (something); something has occurred; sometimes; there are times when-> 事があるexpression, verb