Analyzer
Sentence analysis
6Spans
Sentence
Span Details
先生
teacher; instructor; master; sensei; title of respect; (teasing) sir; (joking) master; one's eldernoun, noun suffix
は
topic markergrammar
事務室
office; office roomnoun
に
direction, time, indirect object, or target markergrammar
い
be; exist; stay; be ...-ing; have ...-ed; be ...-ed-> 居るichidan verb, auxiliary
ます。
polite non-pastgrammar