Analyzer
Sentence analysis
7Spans
Sentence
Span Details
彼
he; him; boyfriendpronoun
は
topic markergrammar
一意専心、
single-mindedly; wholeheartedly; with all one's heartadverb, noun, no-adjective
研究
research; study; investigationnoun, suru verb
に
direction, time, indirect object, or target markergrammar
打ち込ん
drive in; hammer in; hit; drive; smash; fire into; shoot into; input; enter; devote oneself to; be absorbed in; throw oneself into; practice hitting; land a blow; get a hit in; invade territory; place a stone in opponent's formation; pour into a form-> 打ち込むgodan verb
だ。
past tense or completed action-> たgrammar