Analyzer
Sentence analysis
10Spans
Sentence
Span Details
研究
research; study; investigationnoun, suru verb
に
direction, time, indirect object, or target markergrammar
は
topic markergrammar
一次資料
primary sourcenoun
を
object markergrammar
使う
use; make use of; employ; handle; spend; consume; speakgodan verb
こと
thing; matter; the fact that; doing; incident; event; trouble; crisis; circumstances; situation; state of affairs; affairs; business; work; make-believe; pretending to; also known as; real name; alias; no need to; not necessary to; should; it is important to; I advise that-> 事noun, noun suffix
が
subject markergrammar
重要
important; essential; significantna-adjective
だ。
plain copulagrammar