～わけだ (〜wake da)
Explanation
Express a logical conclusion or reason; 'it means', 'no wonder', 'the reason is'.
Formation
Verb-casual + わけだ, い-Adjective + わけだ, な-Adjective + なわけだ, Noun + のわけだ
Detailed Explanation
The ～わけだ grammar point is used to express a logical conclusion or reason. It can be translated as 'it means...', 'no wonder...', or 'that explains why...'.
Examples
彼女が遅れたのは、電車が遅れたわけだ。
Kanojo ga okureta no wa, densha ga okureta wake da.
The reason she was late is that the train was delayed.
授業が面白かったから、みんな熱心に聞いていたわけだ。
Jugyou ga omoshirokatta kara, minna nesshin ni kiiteita wake da.
The class was interesting, so that's why everyone was listening intently.
彼はとても忙しいですから、休みがほとんどないわけだ。
Kare wa totemo isogashii desu kara, yasumi ga hotondo nai wake da.
He's really busy, which is why he hardly has any time off.
この問題が難しいから、全然わからないわけだ。
Kono mondai ga muzukashii kara, zenzen wakaranai wake da.
This problem is tough, so no wonder I don't understand it at all.
Grammar content sourced from hanabira.org.