Japanese

のだ

のだ
Meaning: it is that...; explanatory particle
Part of Speech: Auxiliary verb

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Verb inflections

Form Affirmative Negative
Present のだ

Example sentences

僕は将来、宇宙飛行士になるのだ。
I am going to become an astronaut in the future.
要するに、我々の力不足だったのだ。
To put it simply, we were not competent enough.
あんな小娘に何ができるというのだ。
What can a mere girl like that possibly do?
彼は日本語が上手だ。なにせ日本に十年も住んでいるのだから。
He is good at Japanese. After all, he has lived in Japan for ten years.
あの優秀な彼にしてからがその試験に落ちたのだから、難易度は相当高いはずだ。
Even that excellent guy failed the exam, so the difficulty level must be extremely high.

Usage Notes

Used to provide an explanation, reason, or to show strong resolve. In spoken Japanese, it often becomes 'んだ'.

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