# とすれば・としたら・とすると: if; assuming that

> Learn how to use とすれば・としたら・とすると, a JLPT N3 Japanese grammar point meaning if; assuming that, with structure, nuance, examples, mistakes, and comparisons.

JLPT level: N3 · Updated: 2026-05-17 · Canonical: https://hane-app.com/blog/n3-to-sureba/

**とすれば・としたら・とすると** means **if; assuming that**. It is a **JLPT N3** grammar pattern used to **state a conclusion or question based on an assumption**.

This grammar point often appears in **neutral** Japanese. If you want to **state a conclusion or question based on an assumption**, **とすれば・としたら・とすると** is a useful pattern to learn.

## What does とすれば・としたら・とすると mean?

Use **とすれば・としたら・とすると** when you want to **state a conclusion or question based on an assumption**.

Natural translations include:
- if; assuming that
- if
- if / assuming that

## How to form とすれば・としたら・とすると

Plain form + とすれば / としたら / とすると

Examples of the pattern:
- 行くとしたら
- 本当だとすれば
- 考えるとすると

## When is とすれば・としたら・とすると used?

Use **とすれば・としたら・とすると** in situations like:
- explaining grammar in context
- answering JLPT reading questions
- making natural Japanese sentences

Tone and register:
- neutral
- Common in JLPT reading, grammar questions, and natural Japanese sentences

## とすれば・としたら・とすると example sentences

- もし彼の話が本当だとすれば、大きな問題です。 — If his story is true, it is a big problem.
- 行くとしたら、何時に出ますか。 — If you go, what time will you leave?
- 一人で住むとすると、いくら必要ですか。 — Assuming you live alone, how much money is needed?
- 試験が来週だとしたら、今すぐ勉強しなければならない。 — If the exam is next week, I must study right now.
- この計画を始めるとすれば、準備が必要です。 — If we start this plan, preparation is necessary.

## Nuance of とすれば・としたら・とすると

The key nuance is **a natural way to express “if; assuming that” with the right context and tone**.

This matters because **とすれば・としたら・とすると** does more than match a single English phrase. It shows how the speaker frames the condition, timing, example, role, intention, or contrast in the sentence.

For example:
- In context, it sounds natural when the surrounding sentence supports the nuance.
- Compared with **[なら](/blog/n4-nara/)**, it has a different focus and level of formality.

## とすれば・としたら・とすると vs なら

Both **とすれば・としたら・とすると** and **[なら](/blog/n4-nara/)** can appear in related situations, but they are different.

**とすれば・としたら・とすると**:
- means **if; assuming that**
- fits the specific N3 pattern and nuance explained above

**[なら](/blog/n4-nara/)**:
- なら is common “if”; とすれば/としたら/とすると sounds more hypothetical or logical

Quick contrast examples:
- Target: もし彼の話が本当だとすれば、大きな問題です。 — If his story is true, it is a big problem.
- Compare: Try replacing it with **[なら](/blog/n4-nara/)** and check whether the nuance still matches.

## Common mistakes with とすれば・としたら・とすると

Watch out for these mistakes:
- Using **とすれば・としたら・とすると** with the wrong form
- Confusing **とすれば・としたら・とすると** with **[なら](/blog/n4-nara/)**
- Translating it too literally instead of reading the whole sentence

## Is とすれば・としたら・とすると on the JLPT?

Yes. **とすれば・としたら・とすると** is commonly taught as **JLPT N3** 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 とすれば・としたら・とすると

Try making your own sentences with these prompts:
- Write one sentence using **とすれば・としたら・とすると**.
- Contrast **とすれば・としたら・とすると** with **[なら](/blog/n4-nara/)**.
- Make a JLPT-style sentence where the context makes the meaning clear.

## Learning path for とすれば・としたら・とすると

To learn **とすれば・としたら・とすると** efficiently, review the formation first, then compare it with the closest existing grammar point before writing your own sentence.

1. First, make sure you can form **とすれば・としたら・とすると** without looking at the pattern chart.
2. Next, compare it with [なら](/blog/n4-nara/), [と言えば（といえば）](/blog/n3-to-ieba/). These patterns are close enough that choosing between them helps you understand the nuance.
3. Finally, write sentences where the grammar point’s nuance is necessary; then check whether replacing **とすれば・としたら・とすると** with [といい / たらいい](/blog/n3-to-ii-tara-ii/) changes the meaning.

## Related grammar to review next

- [なら](/blog/n4-nara/) — because it is the closest comparison used in this article.
- [と言えば（といえば）](/blog/n3-to-ieba/) — because it appears in the same grammar family.
- [といい / たらいい](/blog/n3-to-ii-tara-ii/) — because it appears in the same grammar family.
- [といっても](/blog/n3-to-ittemo/) — because it appears in the same grammar family.

## Learn とすれば・としたら・とすると with Hane

If you want to review **とすれば・としたら・とすると** 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](/blog/)
- [JLPT N3 grammar lessons](/blog/n3/)