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Sentence analysis
7Spans
Sentence
Span Details
先生
teacher; instructor; master; sensei; title of respect; (teasing) sir; (joking) master; one's eldernoun, noun suffix
に
direction, time, indirect object, or target markergrammar
推薦状
letter of recommendation; letter of invitation; referencenoun
を
object markergrammar
書い
write; compose; pen; draw; paint-> 書くgodan verb
ていただき
humble benefactive action received from someone-> ていただくgrammar
ました。
polite pastgrammar