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やしない
N1 GRAMMAR ⏱ 0s study 📖 0 today
ya shinai
should do, but don't; there's no way ~
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🃏 Flashcard
やしない
ya shinai
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should do, but don't; there's no way ~
N1
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📊 Pattern Stats
JLPT Level N1
Advanced · Literary, rhetorical & rare forms
Reading ya shinai
Post ID 51429
Patterns today 0
0 / 10 daily goal
📝 Usage Notes

should do, but don't; there's no way ~

📖 How to use it

Expresses strong denial or refusal, meaning 'there's no way (I) would do ~' or '(I) certainly won't do ~'.

Attaches to Attach to the ます-stem (連用形) of a verb. For する, it becomes しやしない; for くる, きやしない.

This pattern is a colloquial, emphatic negative formed by inserting や between the ます-stem and しない. It conveys the speaker's strong determination not to do something, often with a tone of defiance or disbelief. It is used in spoken Japanese, especially in casual or rough speech, and less so in polite conversation or writing.

When you use やしない, you are not just saying 'I won't do it', but rather 'There's no way I'd do it' – it implies that the action is unthinkable or that the speaker firmly rejects it. It can also be used for third persons, expressing that someone absolutely will not do something.

Because it is informal and strong, it is not suitable for formal situations. It appears in dialogues, manga, and casual speech, and may sound blunt if used with people you should be polite to.

あんな人、二度と会いやしないよ。
Anna hito, nido to ai ya shinai yo.
I'll never meet that kind of person again.
こんなに勉強しても、テストには出やしない。
Konna ni benkyou shite mo, tesuto ni wa de ya shinai.
Even if I study this much, there's no way it'll be on the test.
彼は謝りやしない。頑固だから。
Kare wa ayamari ya shinai. Ganko dakara.
He won't apologize. He's stubborn.
Not 〜はしない (e.g., 会いはしない) is a similar emphatic negative, but やしない is more colloquial and stronger. Both are emphatic denials, but やしない sounds rougher and is more common in casual speech. 〜はしない is slightly more formal and can be used in writing. For example, 会いはしない sounds like a firm statement, while 会いやしない adds a sense of 'absolutely not' with an emotional overtone.
Register Spoken, informal, and often blunt; not used in formal writing or polite conversation.
🎯 Quick Quiz
What does this grammar pattern mean or do?
やしない
📚 How to Master This Pattern
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Say It Aloud
Press Hear it and repeat やしない three times. Feel the rhythm — grammar patterns have a natural flow.
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Flip Before Reading
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Write Two Sentences
Compose two original sentences using やしない. One about yourself, one about something you see right now.
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Spaced Review
Save this pattern and revisit at 10 min, 1 day, 3 days. Production (writing) beats recognition for grammar.
❓ Frequently Asked Questions
What does the grammar pattern やしない mean? ▼
Should do, but don't; there's no way ~
What JLPT level is やしない? ▼
Nihoner currently groups this pattern under JLPT N1 — Advanced · Literary, rhetorical & rare forms. Use the level label as study guidance rather than a prediction of what will appear on an exam.
How do you use やしない in a sentence? ▼
Attach やしない (ya shinai) to the appropriate verb or noun form as described in the usage notes. Then try writing two original sentences — one about yourself and one about something around you.
Is やしない formal or casual Japanese? ▼
やしない is used in formal or written contexts. You will see it mainly in written texts, news, business Japanese and academic contexts.
How can I remember やしない long-term? ▼
Use the flashcard on this page for active recall — see the pattern, reconstruct the usage from memory, then flip. Follow with the 4-choice quiz to distinguish it from similar patterns. Review later the same day and again over the following days. Writing original sentences can help you practise using the pattern in context.