Analyzer
Sentence analysis
7Spans
Sentence
Span Details
彼ら
they; thempronoun
は
topic markergrammar
密か
secret; private; surreptitiousna-adjective
に
adverbial form after a na-adjectivegrammar
協力
cooperation; collaboration; help; supportnoun, suru verb
して
light/support verb with a noun or noun-like phrase-> するgrammar
計画を進めた。
carry a plan forward; advance a plan; move a plan ahead-> 計画を進めるexpression, verb