Analyzer
Sentence analysis
5Spans
Sentence
Span Details
彼
he; him; boyfriendpronoun
は
topic markergrammar
しつこく
persistent; insistent; tenacious; obstinate; too rich; heavy; greasy; fatty-> 執拗いi-adjective
勉強
study; learning; diligence; hard work; effort; experience; knowledge; lesson; discount; price reductionnoun, suru verb
した。
light/support verb with a noun or noun-like phrase-> するgrammar