JLPT N3 grammar

〜わけだ: meaning and usage

Meaning

As you'd expect, A; Of course, A

This point is also listed at N2.

How to form it

  • verb (plain form)/い-adjectiveわけだ
  • な-adjective (stem)なわけだ
  • nounな/というわけだ

How it is used

Draws a conclusion that follows from facts or reasoning: 'no wonder A, so that means A', often with 「どうりで」 or 「だから」. 「はずだ」 is an expectation; 「わけだ」 shows understanding once the reason is known.

Examples

  1. どうりでみち子は嫌がるわけだ。

    It's no surprise that Michiko doesn't like it.

  2. 十年もアメリカにいたの?英語が上手なわけだ。

    You lived in America for ten years? No wonder your English is so good.

  3. 一時間に五ページ読めば、八時間で四十ページになるわけだ。

    If you read five pages an hour, that means forty pages in eight hours.