にする

にする means to decide on. It is a JLPT N5 Japanese grammar pattern used to state a choice or decision.

This grammar point appears often in beginner conversations, classroom Japanese, and JLPT-style questions. If you want to state a choice or decision, にする is a useful pattern to learn because it helps you build natural basic sentences.

What does にする mean?

Use にする when you want to state a choice or decision.

Natural translations include:

• to decide on
• to decide on; choose
• to decide on; choose

The exact English translation changes with context. Focus on the role of the grammar point in the sentence first, then choose the English phrase that sounds natural.

How to form にする

Noun + にする

Examples of the pattern:

• これにする
• コーヒーにする
• 先生になる

Pay attention to the word form before and after the pattern. Many beginner mistakes happen because the meaning is understood, but the grammar is attached to the wrong form.

When is にする used?

Use にする in situations like:

• ordering food or drinks
• choosing between options
• making simple decisions

Tone and register:

• neutral and common in speech
• Common in daily speech, textbook examples, and beginner JLPT questions

にする example sentences

• 私はこれにします。 — I’ll choose this one.
• 飲み物はお茶にします。 — For my drink, I’ll have tea.
• 晩ご飯はカレーにしましょう。 — Let’s have curry for dinner.
• 部屋をきれいにします。 — I will make the room clean.
• 名前は何にしますか。 — What will you choose for the name?

Read the Japanese sentence first, then check the English translation. Try to notice what the grammar point contributes: question, contrast, reason, time limit, suggestion, negation, comparison, or obligation.

Nuance of にする

The key nuance is the speaker actively chooses one option.

This matters because beginner Japanese often uses small words and endings to show meaning that English expresses with word order or helper verbs. For にする, the sentence can change a lot depending on placement and context.

For example:

• In conversation, it helps the listener understand the speaker actively chooses one option.
• Compared with になる, it has a different job even when the English translation looks close.

にする vs になる

Both にする and になる can express related ideas, but they are different.

にする:

• shows an active decision or choice
• often used when selecting from options

になる:

• describes becoming or a change of state
• does not necessarily show choice

Quick contrast examples:

• 私はコーヒーにします。— I’ll have coffee.
• 水が氷になります。— Water becomes ice.

If you are unsure which one to use, ask what the sentence is trying to do: ask a question, connect ideas, show a reason, mark time, make an invitation, compare two things, or express obligation.

Common mistakes with にする

Watch out for these mistakes:

• Confusing choice にする with change になる
• Using をする after the chosen noun
• Forgetting polite form にします in service situations

A good study habit is to write one short sentence and then change only the grammar point. This makes the difference between similar patterns easier to feel.

Is にする on the JLPT?

Yes. にする is commonly taught as JLPT N5 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, do not only memorize the English gloss. Practice identifying the words around the grammar point, because JLPT questions often test structure and context together.

Practice questions for にする

Try making your own sentences with these prompts:

• Say “I’ll choose this.”
• Choose tea as your drink.
• Ask what someone will choose.

Keep the sentences short at first. Once the form feels natural, add time words, places, reasons, or contrast to make the sentence more realistic.

Learning path for にする

To learn にする efficiently, use it as part of your JLPT N5 desire, invitation, plan, and intention grammar toolkit. Identify whose desire or plan is being described.

1. First, make one short sentence with にする without looking at the pattern chart.
2. Next, compare it with つもり. These patterns are close enough that choosing between them helps you understand the nuance.
3. Finally, add なる or たい to see how the basic meaning changes, and write one example with a different subject or time word and one example that contrasts it with a related pattern.

Related grammar to review next

• つもり — connects to wanting, inviting, deciding, planning, or going to do something.
• なる — contrasts with this pattern from the existence, identity, adjective, and state grammar group.
• たい — connects to wanting, inviting, deciding, planning, or going to do something.
• ましょう — connects to wanting, inviting, deciding, planning, or going to do something.

Learn にする with Hane

If you want to review にする together with the related patterns above, Hane helps you practice Japanese in short, focused sessions.

Browse more lessons here:

• All grammar lessons
• JLPT N5 grammar lessons