〜わけだ (~wake da) — that's why / no wonder
The moment the reason lands and you go "ah, that's why".
Formula (सूत्र ढाँचा)
Grammar rule (व्याकरण नियम र परिभाषा)
Meaning
- Once you learn why something is the way it is, 「〜わけだ」delivers the conclusion — "so that's why": 「10年日本にいるの？日本語が上手なわけだ」= ten years in Japan? No wonder your Japanese is good.
- It adds no new fact; it shows the conclusion that follows naturally from what you just heard.
How to attach
「〜というわけだ」is the same.
Versus what you know
N4Do not mix it up with 「〜はずだ」: はずだ = it ought to be (a guess, not yet confirmed), わけだ = so that's why (the reason is now known).
Examples (उदाहरणहरू)
10年日本にいるの？日本語が上手なわけだ。
じゅうねんにほんにいるの？にほんごがじょうずなわけだ。
Ten years in Japan? No wonder your Japanese is good.
How it is built (कसरी बन्यो) 上手だ is a な-adj → drop だ, put な → add わけだ → 上手なわけだ = so that's why it's so good.
窓が開いている。寒いわけだ。
まどがあいている。さむいわけだ。
The window is open. No wonder it's cold.
How it is built (कसरी बन्यो) 寒い is an い-adj → add わけだ directly → 寒いわけだ. The first sentence gives the reason, the second gives the conclusion.
毎日練習した。だから勝てたというわけだ。
まいにちれんしゅうした。だからかてたというわけだ。
I practiced every day. That's why I was able to win.
How it is built (कसरी बन्यो) 勝てた (was able to win) → add というわけだ → it makes clear the conclusion that follows from the reason.
Knowledge check (मिनी ज्ञान जाँच)
「かぜをひいたの？元気がない＿。」— which is right?
💡 Hint: The reason is already known.
A conclusion drawn once the reason is known = わけだ.
How do 「〜わけだ」and 「〜はずだ」differ?
💡 Hint: In one, the reason is already known.
わけだ = a conclusion after the reason is known; はずだ = still a guess.
Which form is right after a な-adjective?
💡 Hint: Turn だ into な.
な-adjective + な + わけだ.
Your score: /3