Analyzer
Sentence analysis
7Spans
Sentence
Span Details
彼
he; him; boyfriendpronoun
は
topic markergrammar
一年間
one year; period of one yearnoun
日本
Japannoun
に
direction, time, indirect object, or target markergrammar
留学
study abroad; studying abroad; temporary study at another school; specialized study away from one's usual schoolnoun, suru verb
した。
light/support verb with a noun or noun-like phrase-> するgrammar