JLPT N2 6 min read Updated May 2, 2026 Grammar pattern

も当然だ(もとうぜんだ)

it's only natural; no wonder; might as well ~

Learn how to use も当然だ(もとうぜんだ), a JLPT N2 Japanese grammar point meaning it's only natural, with structure, nuance, examples, mistakes, and comparisons.

Meaning
it's only natural; no wonder; might as well ~
Pattern
も当然だ(もとうぜんだ)
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JLPT grammar
JLPT
N2

も当然だ(もとうぜんだ) means it’s only natural; no wonder; might as well ~. It is a JLPT N2 Japanese grammar pattern used to express that a situation or outcome is entirely expected, justified, and natural given the circumstances.

This grammar point often appears in essays, formal writing, conversations, and JLPT N2 reading passages. If you want to express that a situation or outcome is entirely expected, justified, and natural given the circumstances, も当然だ(もとうぜんだ) is a useful pattern to learn because it adds natural precision to your Japanese.

What does も当然だ(もとうぜんだ) mean?

Use も当然だ(もとうぜんだ) when you want to express that a situation or outcome is entirely expected, justified, and natural given the circumstances.

Natural translations include:

  • it’s only natural; no wonder; might as well ~

The best translation depends on the sentence. Try to notice the writer’s or speaker’s purpose first, then choose the English phrase that fits that context.

How to form も当然だ(もとうぜんだ)

Verb/い-adj (plain form) + のも当然だ / Noun + も当然だ

Examples of the pattern:

  • 怒るのも当然だ
  • 成功するのも当然だ

The form before the grammar point matters. In JLPT questions, the wrong answer choices often use a similar meaning but attach it to the wrong type of word.

When is も当然だ(もとうぜんだ) used?

Use も当然だ(もとうぜんだ) in situations like:

  • a reaction or result is completely natural and expected
  • expressing personal reactions, reasoning, or observations
  • connecting ideas in formal and informal contexts

Tone and register:

  • neutral; affirming that something makes perfect sense
  • Common in test questions, essays, daily conversation, and JLPT N2 reading

も当然だ(もとうぜんだ) example sentences

  • 彼があんなに怒るのも当然だ。
  • 毎日練習すれば、上手になるのも当然だ。
  • こんなにサービスが良ければ、人気があるのも当然だ。
  • あれだけ勉強したのだから、合格したのも当然だ。
  • 彼が自慢するのも当然の結果だ。

After reading each sentence, ask what job も当然だ(もとうぜんだ) is doing: a situation or outcome is entirely expected, justified, and natural given the circumstances. That makes the nuance easier to remember than a one-word translation.

Nuance of も当然だ(もとうぜんだ)

The key nuance is a situation or outcome is entirely expected, justified, and natural given the circumstances.

This matters because learners often translate advanced grammar too literally. A pattern may look simple, but it can signal the writer’s attitude, the scope of a rule, or the relationship between two ideas.

For example:

  • In context, it carries a specific, nuanced meaning that a simpler pattern would not convey.
  • Compared with のも無理はない, it carries a different weight and implication.

も当然だ(もとうぜんだ) vs のも無理はない

Both も当然だ(もとうぜんだ) and のも無理はない can express related ideas, but they are different.

も当然だ(もとうぜんだ):

  • a situation or outcome is entirely expected, justified, and natural given the circumstances

のも無理はない:

  • it’s no wonder (softer, more sympathetic)

Quick contrast examples:

  • 怒るのも当然だ。
  • 怒るのも無理はない。

If both translations seem possible, check the tone. Is the sentence casual, formal, written, explanatory, or emotional? The tone often tells you which grammar point is natural.

Common mistakes with も当然だ(もとうぜんだ)

Watch out for these mistakes:

  • Translating it too literally without understanding the nuance
  • Using it in contexts where the situation doesn’t match the grammar’s core meaning
  • Confusing it with similar-looking but different grammar patterns

A helpful practice method is to write one sentence with も当然だ(もとうぜんだ), then rewrite it with のも無理はない. If the meaning or tone changes, explain that difference in your own words.

Is も当然だ(もとうぜんだ) on the JLPT?

Yes. も当然だ(もとうぜんだ) is commonly taught as JLPT N2 grammar.

That means learners should be able to:

  • recognize it in reading
  • understand its nuance in context
  • use it in simple original sentences

For test preparation, study the grammar point in full sentences. JLPT questions often test whether you understand the surrounding context, not just the dictionary meaning.

Practice questions for も当然だ(もとうぜんだ)

Try making your own sentences with these prompts:

  • Use も当然だ(もとうぜんだ) in a sentence about a personal experience or observation.
  • Write a sentence where the nuance of も当然だ(もとうぜんだ) is necessary.
  • Compare も当然だ(もとうぜんだ) with のも無理はない in your own example.

Keep your first sentences simple. Once the structure feels natural, add more context so the nuance becomes clear.

Learning path for も当然だ(もとうぜんだ)

To learn も当然だ(もとうぜんだ) efficiently, start with its formation, then compare it with similar patterns, and finally practice in context.

  1. First, make sure you can form も当然だ(もとうぜんだ) without looking at the pattern chart.
  2. Next, compare it with のも無理はない. These patterns are close enough that choosing between them helps you understand the nuance.
  3. Finally, write sentences where も当然だ(もとうぜんだ) is necessary; then check whether replacing it with one of the related patterns below changes the meaning.

Learn も当然だ(もとうぜんだ) with Hane

If you want to review も当然だ(もとうぜんだ) together with the related patterns above, Hane helps you practice Japanese in short, focused sessions.

Browse more lessons here:

FAQ about も当然だ(もとうぜんだ)

What does も当然だ(もとうぜんだ) mean in Japanese?

も当然だ(もとうぜんだ) means “it's only natural; no wonder; might as well ~” in Japanese. It is an N2 grammar point, and this lesson explains its formation, nuance, example sentences, common mistakes, and similar grammar.

Is も当然だ(もとうぜんだ) on the JLPT?

も当然だ(もとうぜんだ) is taught as N2 Japanese grammar in Hane's grammar lesson archive. Review it with examples, usage notes, and related N2 patterns.

How should I practice も当然だ(もとうぜんだ)?

Read several example sentences, identify the form before and after も当然だ(もとうぜんだ), then make your own short sentences and compare it with nearby grammar points.

Practice this with Hane
Drill も当然だ(もとうぜんだ) until it’s automatic.

Short, focused iOS sessions for grammar, kanji, vocabulary, reading, and JLPT review. Use this lesson with the JLPT prep app and the Japanese learning app overview.

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