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JLPT N2 Formal

〜mono da

Expresses something natural or expected; 'it is normal that...', 'should', 'ought to'.

Moralizing "that's just how things are/should be" - general truths or social norms.

Formation

Explanation

「～ものだ」 can indicate that something is regarded as a general truth, common sense, or natural behavior. It can also express strong sentiment or emotion. In the past tense (Verb-た form + ものだ), it often shows nostalgia or recollection ('I used to...').

Example sentences

  • It is natural to have a lot of fun when you are young.

    Wakai toki wa takusan asobu mono da.

  • If you make a promise, you should keep it.

    Yakusoku o shitara, mamoru mono da.

  • When guests arrive, it's customary to serve tea.

    Okyakusan ga kuru to, ocha o dasu mono da.

  • In life, one ought to face hardships.

    Jinsei wa konnan ni tachimukau mono da.

Should (Advice / Expectation)