Analyzer
Sentence analysis
8Spans
Sentence
Span Details
約束
promise; agreement; one's word; contract; appointment; engagement; date; convention; rule; destiny; fatenoun, suru verb
を
object markergrammar
忘れ
forget; leave behind-> 忘れるichidan verb
てい
ongoing or resultant state-> ているgrammar
た
past tense or completed actiongrammar
ので
because; sincegrammar
はっと
with a start; in surprise; suddenly realize; all of a sudden; with a puff; puffing; suddenly (movement); showy (archaic)adverb
した。
light/support verb with a noun or noun-like phrase-> するgrammar