Analyzer
Sentence analysis
10Spans
Sentence
Span Details
この
this; last (couple of years, etc.); these; past; you (as in "you liar")-> 此のpre-noun adjective
研究
research; study; investigationnoun, suru verb
に
direction, time, indirect object, or target markergrammar
は
topic markergrammar
多く
many; much; a lot; majority; greater part; most; mostly; mainly; usually; oftennoun, adverb, no-adjective
の
possession, attribution, nominalizer, or nominal linkergrammar
協力者
collaborator; cooperator; allynoun
が
subject markergrammar
い
be; exist; stay; be ...-ing; have ...-ed; be ...-ed-> 居るichidan verb, auxiliary
た。
past tense or completed actiongrammar