Analyzer
Sentence analysis
7Spans
Sentence
Span Details
番兵
sentry; guardnoun
が
subject markergrammar
夜通し
all night; throughout the nightadverb, noun
警戒
vigilance; caution; alertness; precaution; being on guardnoun, suru verb
し
light/support verb with a noun or noun-like phrase-> するgrammar
てい
ongoing or resultant state-> ているgrammar
た。
past tense or completed actiongrammar