🦅 Project Eagle
Synonym Nuance VS

How to say "Be" in Japanese

Both words can translate to "be", but which should you choose?

Japanese Option A

建つ

たつ (tatsu)
N4 / CEFR Syllabus
VS
Japanese Option B

役立つ

やくだつ (yakudatsu)
N3 / CEFR Syllabus

Nuance Contrast & Translation Difference

When translating "be" into Japanese, you must choose carefully between 建つ and 役立つ. In Japanese, 建つ (たつ (tatsu)) is typically associated with "to be built, to be erected (intransitive)" (Syllabus Level: N4) and represents Indicates that a building, monument, etc., has been constructed or is in a standing state. The focus is on the object itself.. On the other hand, 役立つ (やくだつ (yakudatsu)) maps to "to be useful, to be helpful" (Syllabus Level: N3) and represents An intransitive verb. Used to describe something that serves a purpose or provides assistance. Often followed by に.. A literal translation of "be" can often sound unnatural to native Japanese speakers if mixed up!
Bilingual Context for "建つ"
この公園の隣に新しい図書館が建ちました。
A new library was built next to this park.
Bilingual Context for "役立つ"
このアプリは毎日の仕事にとても役立ちます。
This app is very useful for daily work.

Nuance Mastery Quiz

Which Japanese word perfectly fits this blank space?

Fill in the blank: "この公園の隣に新しい図書館が建ちました。" (Meaning: "A new library was built next to this park.")
🎉 Correct Answer!

Remember: "建つ" fits here because it means "to be built, to be erected (intransitive)" in the context of: "A new library was built next to this park.". "役立つ" represents "to be useful, to be helpful".

💡 Practice with AI! Live

Don't just read. Practice speaking this grammar with our interactive AI coach for free!

Try AI Speaking 👉