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Sentence analysis
4Spans
Sentence
Span Details
約束
promise; agreement; one's word; contract; appointment; engagement; date; convention; rule; destiny; fatenoun, suru verb
は
topic markergrammar
守る
protect; guard; defend; keep (a promise); observe (rules); followgodan verb
べし。
must; should; ought to; will surely; be bound to; will do; shall-> 可しauxiliary, i-adjective