ようではないかyou dewa nai ka“let's; why don't we”

ようではないか means let’s; why don’t we. It is a JLPT N2 Japanese grammar pattern used to make a formal or rhetorical suggestion to do something together.

This grammar point often appears in advanced reading, formal writing, notices, essays, and careful conversation. If you want to read Japanese with more nuance, ようではないか is a useful pattern to learn because it shows the speaker’s logic, stance, or emphasis.

What does ようではないか mean?

Use ようではないか when you want to make a formal or rhetorical suggestion to do something together.

Natural translations include:

• let’s; why don’t we
• depending on context
• in a way that matches the speaker’s emphasis

How to form ようではないか

Volitional form + ではないか

Examples of the pattern:

• 皆で協力しようではないか。
• この機会に新しいことに挑戦しようではないか。
• もう一度

When is ようではないか used?

Use ようではないか in situations like:

• reading formal explanations, announcements, or essays
• making a point more precise than a basic grammar pattern would
• connecting two ideas with a clear nuance

Tone and register:

• usually neutral to formal, depending on the expression
• common in JLPT N2 reading passages, news, notices, and business-like writing

ようではないか example sentences

• 皆で協力しようではないか。 — Let’s all cooperate.
• この機会に新しいことに挑戦しようではないか。 — Why don’t we take this opportunity to try something new?
• もう一度、最初から考えてみようではないか。 — Let’s think it through again from the beginning.
• 力を合わせて問題を解決しようではありませんか。 — Let us join forces and solve the problem.
• 未来のために、今行動しようではないか。 — Let’s act now for the future.

After reading each sentence, ask what job ようではないか is doing.

Nuance of ようではないか

The key nuance is make a formal or rhetorical suggestion to do something together.

For example:

• In formal writing, ようではないか often sounds more precise than a casual equivalent.
• Compared with ましょう, it has a different tone or scope even when the English translation looks similar.

ようではないか vs ましょう

ようではないか:

• fits the N2 nuance explained above
• often sounds more specific, formal, or emphatic

ましょう:

• is usually broader, simpler, or used in a different register
• may be better in casual conversation depending on the sentence

Quick contrast examples:

• 皆で協力しようではないか。
• Try rewriting the sentence with ましょう and notice whether the tone or meaning changes.

Common mistakes with ようではないか

Watch out for these mistakes:

• Translating it too literally and missing the function in context
• Confusing it with ましょう just because the English translation overlaps
• Using it in casual speech when a simpler pattern would sound more natural

A helpful practice method is to write one sentence with ようではないか, then compare it with a related grammar point. Explain the difference in your own words.

Is ようではないか on the JLPT?

Yes. ようではないか 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

Practice questions for ようではないか

• Write one sentence that clearly needs ようではないか.
• Write a second sentence with ましょう and compare the nuance.
• Find a notice, article, or dialogue where this kind of meaning would be natural.

Learning path for ようではないか

To learn ようではないか efficiently, follow a path that matches this pattern’s real function.

1. First review the formation so the base structure feels natural.
2. Then compare ようではないか with ましょう and the related lessons below.
3. Finally, write your own sentence where the context makes ようではないか necessary.

Related grammar to review next

• n5 mashou — let’s or shall we.
• n5 mashouka — shall I.
• n3 you to suru — try to; be about to.

Learn ようではないか with Hane

If you want to review ようではないか together with the related patterns above, Hane helps you connect grammar, kanji, and vocabulary in short, focused sessions.

Browse more lessons here:

• All grammar lessons
• JLPT N2 grammar lessons