# てみせる: I’ll do my best; I'll definitely do; I'll show you ~ > Learn how to use てみせる, a JLPT N1 Japanese grammar point meaning I’ll definitely do, with structure, nuance, examples, mistakes, and comparisons. JLPT level: N1 · Updated: 2026-05-18 · Canonical: https://hane-app.com/blog/n1-te-miseru/ **てみせる** means **I’ll do my best; I'll definitely do; I'll show you ~**. It is a **JLPT N1** Japanese grammar pattern used to express strong determination to accomplish something and demonstrate the result to someone else (or to oneself). This grammar point often appears in speeches, personal declarations, literature, and JLPT N1 reading passages. If you want to express unwavering resolve and a desire to prove yourself, **てみせる** is a useful pattern to learn because it adds natural precision and emotional weight to your Japanese.
てみせる turns an action into a personal challenge. It's not just "I'll do it" — it's "I'll do it, and you'll see my result."
## What does てみせる mean? Use **てみせる** when you want to express strong personal determination to carry out an action and, typically, to show the outcome as proof of your capability. The speaker is not just stating an intent; they are making a declaration that carries an implicit "watch me" or "I'll prove it to you." Natural translations include: - I’ll do my best; I'll definitely do; I'll show you ~ - I'll make sure to (do) / I'll prove I can (do) - I'll show you by doing ~ The best translation depends on the sentence. The core is always **a strong-willed performance intended to demonstrate something**. Try to notice the speaker's stance — are they challenging themselves, responding to doubt, or simply asserting their ability? ## How to form てみせる Verb (て-form) + みせる
Vて ＋ みせる
Examples of the pattern: - やってみせる (I'll show I can do it) - 勝っ(かっ)てみせる (I'll definitely win) - 成功(せいこう)してみせる (I'll succeed, you'll see) The verb before みせる must be in て-form. There are no restrictions on verb type; transitive, intransitive, volitional verbs all work as long as the action can be performed with demonstrative intent. みせる itself conjugates normally as a Group 2 verb (e.g., みせた, みせたい, みせよう), though the pattern is most common in the non-past plain or ます form to signal future determination. ## When is てみせる used? Use **てみせる** in situations like: - making a personal vow or resolution (to others or to yourself) - responding to doubt, criticism, or a challenge - highlighting a skill or effort you want to demonstrate - expressing fighting spirit in sports, work, or creative pursuits - adding dramatic emphasis in storytelling or inner monologue Tone and register: - can be casual or formal depending on the ending (やってみせるよ vs. やってみせます) - carries a slightly emotive, even boastful tone; it's not neutral - common in spoken Japanese, anime, drama, and motivational contexts, but also appears in formal speeches and essays when personal determination is highlighted - Frequently found in JLPT N1 reading passages where character resolve or rhetorical intensity is tested ## てみせる example sentences
来年らいねんこそ、合格ごうかくしてみせる。
Next year, for sure, I'll pass (you'll see).
resolve promise to self
そんなに言いうなら、絶対ぜったいに勝かってみせる。
If you're going to say that, then I'll definitely beat you (just watch).
response to doubt competitive
彼かれは難むずかしい技わざを簡単かんたんにやってみせた。
He performed the difficult technique effortlessly, showing us how it's done.
demonstration skill display
自分じぶんの力ちからで生いきてみせる。
I'll survive on my own strength (and prove I can do it).
resolve independence
諦あきらめないで、最後さいごまで走はしり抜ぬいてみせます。
I won't give up; I'll run through to the very end, I swear.
determination formal
いつか世界せかいを驚おどろかせるような作品さくひんを作つくってみせる。
One day I'll create a work that will amaze the world — I'll prove it.
ambition promise to others
After reading each sentence, ask yourself what **てみせる** adds beyond the base verb. The speaker is not merely stating an action; they are framing it as a personal challenge to be witnessed or proven. That mindset shift will help you internalize the nuance better than a one-word translation. ## Nuance of てみせる The key nuance is **strong determination to perform an action in a way that demonstrates ability, resolve, or proof**. This matters because learners who treat **てみせる** as a simple "I will do" miss the demonstrative and emotional layers. The pattern inherently says, "My doing this will be visible evidence of my effort, skill, or willpower." Even when no literal audience exists, the speaker is projecting an inner "watch me" attitude. Several shades emerge: - *Vow or challenge:* The speaker sets a personal goal and declares it emphatically. The act of doing becomes a test of character. - *Response to doubt:* When someone questions your ability, てみせる pushes back with "I'll show you I can." - *Showcasing a skill:* Sometimes it's literal: you perform a technique or solve a problem as a demonstration for someone else. - *Dramatic self-encouragement:* In inner monologue, it bolsters resolve. The speaker is proving something to themselves. In all cases, the result is expected to be observable — either literally or in the speaker's mind. That is what separates it from neutral future expressions like 〜つもり or 〜ようと思う(おもう). ## てみせる vs てみる Both **てみせる** and **てみる** appear after the て-form, but they carry entirely different intentions.
てみせる
I'll do it and show/prove it
Used for strong resolve, demonstration, and challenge
やってみせる
I'll do it (you'll see)
vs
てみる
try doing (to see what happens)
Used for tentative actions, experiments, and first attempts
やってみる
I'll try doing it (and see)
Quick contrast pair: - 新しい(あたらしい)レシピを作っ(つくっ)てみる。 (I'll try making a new recipe — just to see how it turns out.) - 絶対(ぜったい)においしい料理(りょうり)を作っ(つくっ)てみせる。 (I'll definitely make a delicious dish — I'll prove I can.) If both feel possible, check the speaker's attitude. てみる is exploratory and open-ended; てみせる is committed, often with a hint of defiance or pride. On the JLPT, answer choices may include both forms in the same question — distinguishing the "trial" nuance from the "demonstrate/prove" nuance is a tested skill. ## Common mistakes with てみせる
❌
暇(ひま)だから、映画(えいが)を見(み)てみせる。
Using てみせる for a casual, low-stakes plan feels unnatural. There's no determination or demonstrative intent.
✅
暇(ひま)だから、映画(えいが)を見(み)てみる。 (I'll watch a movie since I'm free — just to see what it's like.)
❌
ちょっとこれ、食べ(たべ)てみせてください。 (when you want someone to taste a sample)
Asking someone to perform a demonstrative act with てみせる can sound like "Prove to me you can eat it!" unless you genuinely want a show of skill. For a simple taste test, てみる is correct.
✅
ちょっとこれ、食べ(たべ)てみてください。 (Please just try a bite.)
❌
日本語(にっぽんご)を勉強(べんきょう)してみせるつもりです。 (awkward duplication)
Combining てみせる with つもり is redundant and unnatural. てみせる already contains strong intent; adding つもり weakens the impact and creates a stylistic clash.
✅
日本語(にっぽんご)を勉強(べんきょう)してみせます。 or 日本語(にっぽんご)を勉強(べんきょう)するつもりです。
A helpful practice method: take a sentence you've written with **てみせる** and ask, "Does this action serve as a demonstration of my effort or ability, and am I committed to the result?" If the answer is no, you probably need a different pattern. ## Is てみせる on the JLPT? Yes. **てみせる** is commonly taught as **JLPT N1** grammar.
N1
Level: N1 — advanced, nuanced volitional expression
Frequency: Moderate; often appears in reading comprehension and listening sections where speaker intent must be interpreted
What to expect: Questions will test your ability to distinguish **てみせる** from simpler intent markers (つもり, ようと思う(おもう)) and from the similar-looking てみる. You may see it in passages where a character makes a bold declaration, or in dialogue where a speaker responds to skepticism. Correct answer choices often hinge on the demonstrative/prove nuance.
✓ Recognize in context ✓ Understand demonstrative nuance ✓ Distinguish from てみる ✓ Produce natural vow sentences
For test preparation, study this pattern in full sentences with clear emotional context. JLPT questions rarely test the literal meaning alone — they test whether you feel the speaker's attitude. ## Practice questions for てみせる Try making your own sentences with these prompts:
1 You've been told you can't learn a certain skill. Tell that person you'll definitely master it and show them. defiance
2 Write a personal vow for the coming year. Use てみせる to express that your accomplishment will be visible proof of your effort. resolution
3 Describe a situation where someone demonstrates a skill impressively. Use てみせた to describe what they did. observation
4 Compare your sentence using てみせる with the same idea expressed using てみる. Explain how the nuance changes. comparison
Keep your first sentences simple. Once the structure feels natural, add more context so the "I'll show you" attitude becomes unmistakable. ## Learning path for てみせる To learn **てみせる** efficiently, start with its formation, then internalize the volitional-demonstrative core, and finally practice in emotionally rich contexts.
1
Master the て-form attachment pattern: any volitional verb in て-form + みせる. Write five mechanical conjugations without looking (e.g., 走っ(はしっ)てみせる、作っ(つくっ)てみせる、勝っ(かっ)てみせる).
2
Compare てみせる with てみる. Take the same verb and create two sentences: one where you're just trying something, and one where you're determined to prove something. This contrast forces you to feel the difference.
3
Place the pattern in real-life challenge scenarios. Write a sentence as if you're responding to doubt from a friend, setting a personal fitness goal, or promising something to a team. Say it out loud — the emotion should match the language.
4
Read or listen to native examples (anime declarations, athlete interviews, motivational speeches). Notice how てみせる often comes at the climax of a statement and how the surrounding sentences build up to that moment of resolve.
5
Finally, use it in a conversation or written message where you genuinely want to convey determination. Authentic use cements the grammar far better than textbook drills.
## Related grammar to review next These advanced N1 patterns also involve て-form connections or strong speaker attitudes. Reviewing them alongside **てみせる** will deepen your command of emotional nuance in Japanese. - [てかなわない](/blog/n1-te-kanawanai/) — expresses that a situation is unbearably extreme; both patterns use て-form to connect an internal state, but one signals resolve and the other overwhelming intensity. - [てからというもの](/blog/n1-te-kara-to-iu-mono/) — marks a turning point where a change persists "ever since"; similar to てみせる in that it can appear in dramatic narrative contexts where a decisive action leads to a lasting effect. - [てしかるべきだ](/blog/n1-te-shikaru-beki-da/) — conveys that something is natural or deserved; both are evaluative, speaker-oriented patterns, though one judges a situation and the other judges one's own performance. - [てすむことではない](/blog/n1-te-sumu-koto-dewa-nai/) — states that a matter cannot be settled simply; the て-form links to a situation that requires a serious response, aligning with the high-stakes tone often found in sentences with てみせる. ## Learn てみせる with Hane If you want to review **てみせる** together with the related patterns above, Hane helps you practice Japanese in short, focused sessions that strengthen both structure and nuance. Browse more lessons here: - [All grammar lessons](/blog/) - [JLPT N1 grammar lessons](/blog/n1/)