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Sentence analysis
6Spans
Sentence
Span Details
彼
he; him; boyfriendpronoun
は
topic markergrammar
ボランティア活動
volunteer activities; volunteerismnoun
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
でいる。
ongoing or resultant state-> ているgrammar