# 268 Learn Japanese【ものだ】should do; it’s better to; it’s a good idea to - N2 Grammar -

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In this video, you will learn the grammar of【ものだ】should do; it’s better to; it’s a good idea to.
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◆Let's also Review◆
１．【～ものだ／～ものではない】normally; in general, should; must
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２．【ものだ】really
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３．【たものだ】used to; would often
• # 266 Learn Japanese【た...
４．【～に対して】towards; against; regarding; in contrast with
• # 175 Learn Japanese【～...
５．ておきます／ておきました／とく／といた
• # 84 Learn Japanese - ...
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【ものだ】
should do; it’s better to; it’s a good idea to
Verb (dictionary form)＋もの
Verb (ない form) ＋ものだ
It is used when giving advice or preaching about social and moral norms, rather than expressing personal opinions.
（常識からみて）〜するのが当然だ　/　〜するべきだ
（常識からみて）〜しないのが当然だ　/　〜するべきではない
上司には敬語を使うものだ。
→上司には敬語を使うのが当然だ　/　敬語を使うべきだ。
You should use polite language with your boss.
悪口は言うものではない。
→悪口は言わないのが当然だ　/　言うべきではない。
You shouldn’t speak ill of others.
It's difficult to use this phrase for matters of common sense when they do not reflect the speaker's values, such as laws or regulations. This phrase is used when giving advice or preaching about social and moral norms, rather than expressing personal opinions.
×　駐車違反をしたら、罰金を取られるものだ。
If you violate traffic rules, you'll be fined.
【ものだ（Lesson 152）VSものだ（Lesson267）VSものだ（Lesson268）】
①ものだ （Lesson 152）：It is natural to do A from a common-sense perspective. (obligation/expectation)
２０時間仕事をしたら、疲れるものです。
If you work for 20hours, it is normal to become tired.
②ものだ（Lesson267）：It truly is 〜, really (emotion/admiration)
子供の成長は早いものだ。
Children really do grow up so fast.
③ものだ（Lesson268）：Giving advice or preaching about social and moral norms.
悪口は言うものではない
You shouldn’t speak ill of others.
お年寄り対して席を譲るものだ。
You should give up your seat to the elderly.
自分が悪いと思ったら、素直に謝るものです。
If you think you're at fault, you should apologize sincerely.
日本では、約束の5分前には到着しておくものだ。
In Japan, you should arrive at least five minutes before an appointment.
In spoken language, "もんだ" is often used.
約束の時間に遅れそうなときは、事前に連絡するもんだよ。
If you're going to be late, you should contact them beforehand.
結婚式に参加する人は白い服を着ないもんなんですよ。
The person who attends the wedding should not wear white clothes.
In negative form, "ものではない" (or "もんじゃない" in spoken language) is more commonly used than "ないものだ."
音を立てて、スープを飲むものではない。
You shouldn’t slurp your soup loudly.
そんな服装で、会社に行くもんじゃないよ。
You shouldn't go to the office dressed like that.

[@pinkrudy]

thanks for this. i would hear moten roshi from dragonball use mono da a lot and i wasnt sure what it meant.

[@nadiaAl-abd]

شكرا على الفيديو 💗

[@MasaSensei]

ありがとうございます( *´艸｀)