Analyzer
Sentence analysis
7Spans
Sentence
Span Details
夜
night; evening; dinner; evening mealnoun, adverb
の
possession, attribution, nominalizer, or nominal linkergrammar
番をする
keep watch; stand guardexpression, suru verb
の
possession, attribution, nominalizer, or nominal linkergrammar
は
topic markergrammar
大変
very; greatly; awfully; serious; grave; immense; terrible; difficult; hard; tough; major incident; disasteradverb, na-adjective, noun
だ。
plain copulagrammar