Analyzer
Sentence analysis
8Spans
Sentence
Span Details
研究
research; study; investigationnoun, suru verb
に
direction, time, indirect object, or target markergrammar
は
topic markergrammar
粘り強
tenacious; persevering; persistent; sticky; viscous-> 粘り強いi-adjective
さ
-ness; degree; state or quality; assertive sentence-ending particle; come now; come onsuffix, particle, interjection
が
subject markergrammar
必要
necessary; needed; essential; necessity; need; requirementna-adjective, noun
だ。
plain copulagrammar