〜やしない (~ya shinai) — (definitely) not ~ / won't ~ at all

'As if he'd ever listen!' — a strong spoken 'no', full of irritation, resignation or reassurance.

Formula (सूत्र ढाँचा)

Vます [ます] + やしない

Grammar rule (व्याकरण नियम र परिभाषा)

When to use it

A Japanese mother is complaining to a coworker: 「うちの息子、何度言っても聞きやしないのよ」— 'My son — no matter how often I tell him, as if he'd ever listen!'

Meaning

「〜やしない」is the spoken, emotional form of 「〜はしない」(聞きはしない) — a strong 'doesn't at all, won't ever'.
Compared with a plain 「聞かない」it carries much more irritation, disappointment or 'what can you do'
On the other hand it also reassures, as in 「誰も気づきやしないよ」— 'don't worry, nobody will notice.'

How to attach

Attach 「やしない」to the ます-stem of a verb (聞きやしない・食べやしない); する → しやしない, 来る → 来(き)やしない.
In even more clipped speech it becomes 「〜ゃしない」(わかりゃしない), as in the 「といったらありゃしない」you saw before.

Versus what you know

N2It looks like the 「〜っこない」(できっこない), but that judges possibility — 'can't possibly'; 「やしない」simply states hard that someone doesn't do it.
N2「〜ものか」(行くものか) is the speaker's own vow, 'I'll never!'.
The previous point 「もなんともない」was for adjectives; this one is for verbs.

Watch out

The key rule: this is casual talk with friends or family; it isn't used in polite notices, office reports or writing.

Examples (उदाहरणहरू)

うちの息子は、何度注意しても聞きやしない。

うちのむすこは、なんどちゅういしてもききやしない。

No matter how many times I warn my son, he just won't listen.

How it is built (कसरी बन्यो) 何度注意しても = no matter how many times I warn him → 聞く = to listen → from ます-form 聞きます we drop 「ます」: 聞き → we attach 「やしない」 = won't listen at all → the parent's frustration shows.

こんな小さな傷、誰も気づきやしないよ。

こんなちいさなきず、だれもきづきやしないよ。

A tiny scratch like this — nobody's going to notice it.

How it is built (कसरी बन्यो) 小さな傷 = a small scratch → 誰も = nobody → 気づく = to notice → ます-form: 気づき → 「やしない」= won't notice at all → 「よ」 reassures a friend.

あの人に頼んだって、手伝ってくれやしない。

あのひとにたのんだって、てつだってくれやしない。

Even if you ask that person, they won't lift a finger to help.

How it is built (कसरी बन्यो) 頼んだって = even if you ask (casual ても) → 手伝ってくれる = to help someone out → from ます-form 手伝ってくれます we drop 「ます」: 手伝ってくれ → 「やしない」= will never help → a resigned "what can you do" feeling.

Knowledge check (मिनी ज्ञान जाँच)

Question: 1/3

「何度メールを送っても、彼は返事を＿＿やしない。」— fill the blank.

💡 Hint: What is the ます-stem of する?