そばから (日本語能力試験 N1)

「そばから」の情報

そばから is a combination of the noun 側(そば) 'side', and the case marking particle から 'from'. It illustrates something that happens immediately upon (A), and can be translated as 'as soon as (A), (B)', or 'right after (A), (B)'.
(B) is usually something that is considered annoying, unfavorable, or somehow nullifies (A) by the speaker, but there are exceptions. If the more literal translation of 'from right beside (A), (B)' helps to remember the nuance of (B) happening straight away, then that may be a helpful way to memorize this construction.
そばから will follow verbs in either their dictionary or past-tense forms.

彼女(かのじょ)は約束(やくそく)をするそばからすぐ約束(やくそく)を破(やぶ)る。
She breaks her promises as soon as she makes them.
彼(かれ)は注意(ちゅうい)するそばから失敗(しっぱい)をするから、私(わたし)のいうことは聞(き)いていないんだろう。
I guess he doesn't listen to me because he makes mistakes as soon as I warn him.
パソコンを直(なお)したそばからまた壊(こわ)れてしまうから困(こま)っている。
I'm having trouble with my computer because it breaks down just as soon as I fix it.
早(はや)く読(よ)みすぎると読(よ)んだそばから忘(わす)れるから、もっとゆっくり読(よ)む様(よう)にしている。
I try to read more slowly, because if I read too quickly, I forget as soon as I read it.

Regardless of whether the dictionary or the past-tense form of a verb is used, as そばから means 'right after (A)', the meaning will not change at all.

Caution

そばから will almost always imply that (B) is something that always happens upon (A), rather than being a once-off situation.

車(くるま)の洗車(せんしゃ)を終(お)えるそばから、雨(あめ)が降(ふ)ってきた。
It started to rain as soon as I was about to finish washing my car.

例文

メリーさん「夢(ゆめ)を覚(おぼ)えている？」
ゆめじさん「夢(ゆめ)なんて起(お)きたそばから忘(わす)れてしまうものだけど、夜(や)中(ちゅう)に起きてまた眠(ねむ)ると思(おも)い出(だ)す。」
Merry: 'Do you remember your dreams?'
Yumeji: 'Dreams are something I forget as soon as I wake up, but if I wake up in the middle of the night and go back to sleep then I remember.'
自転車(じてんしゃ)は直(なお)したそばから壊(こわ)れてしまう。
My bike breaks as soon as I repair it.
あなたって人(ひと)は、「やるな」と言(い)ったそばからやるんだから。
People like you are just… As soon as I told you not to do it, you still do it…
While そばから is slightly old fashioned, 言ったそばから is still a common expression. In this case, あなたって人は expresses exasperation of the speaker, similar to the English 'How dare you!'.
教(おそ)わったそばから同(おな)じ間違(まちが)いをおかした。
I made the same mistake as soon as I learned of it.
ケーキが熱(あつ)いから触(さわ)らないように言ったそばからこいつは～（そうした）。
As soon as I told him not to touch the cake because it was hot, he… (did so).
The clause after 言ったそばから is often omitted because the intention of the speaker can be understood from the context.
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