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Sentence analysis
6Spans
Sentence
Span Details
男
man; male; guy; fellow; bloke; boyfriend; male lover; manliness; manly honornoun, noun prefix
の
possession, attribution, nominalizer, or nominal linkergrammar
約束
promise; agreement; one's word; contract; appointment; engagement; date; convention; rule; destiny; fatenoun, suru verb
だ。
plain copulagrammar
守ら
protect; guard; defend; keep (a promise); observe (rules); follow-> 守るgodan verb
なければならない。
must; have togrammar