そばからNo sooner than; as soon as, repeatedly
そばから says that each time one action occurs, another follows almost immediately. The result commonly undoes the first action or shows an annoying, futile, or ironic repeated pattern.
A pattern that keeps repeating
The important idea is not merely speed. A happens repeatedly, and B follows immediately each time. B often cancels the benefit of A, reverses it, or makes the effort feel pointless.
新しい単語を覚えるそばから忘れてしまう。
No sooner do I learn new words than I forget them.
AnalyzeThe nonpast forms present this as a characteristic repeated problem, not a single incident.
何度片づけても、子どもたちはおもちゃをしまったそばからまた出してしまう。
No matter how many times things are tidied up, the children take the toys out again as soon as they have put them away.
AnalyzeHere B directly reverses A, a particularly natural setting for this construction.
Choosing the verb form
The verb before そばから may be plain nonpast or plain past. The nonpast often presents A as an action that repeatedly reaches the relevant point; the past form often views A as just completed. In practice, both can describe nearly the same cycle, so choose the form that best matches how you want to view A rather than translating English tense mechanically.
Both forms in recurring situations
この仕事は、メールを一通返すそばから次の問い合わせが届く。
In this job, as soon as I answer one email, the next inquiry arrives.
Analyze店員が棚を整えたそばから、客が商品を手に取っていく。
As soon as the staff arrange the shelves, customers start taking the products.
AnalyzeThe repeated work is immediately disturbed, giving the sentence a mildly resigned tone.
Choosing among similar time expressions
そばから characterizes an immediate pattern that keeps recurring, usually with frustration or irony. たびに neutrally means “every time” and does not require an immediate result. たとたん highlights one sudden event at the moment A ends. が早いか dramatically presents one rapid sequence and has a more literary tone.
母は旅行するたびに、家族に絵はがきを送る。
Whenever my mother travels, she sends her family a postcard.
AnalyzeThis is a welcome neutral routine, so the neutral every-time expression is the natural choice.
More examples
彼女はメモを取るそばから、そのメモをなくしてしまう。
No sooner does she take a note than she loses it.
Analyzeこの壁は落書きを消したそばから、また誰かに書かれてしまう。
As soon as the graffiti is removed from this wall, someone writes on it again.
Analyze新人は一つ手順を覚えるそばから、前に習った手順を忘れてしまう。
Each time the new employee learns one procedure, they immediately forget a procedure learned earlier.
Analyze会議で方針を決めたそばから変更されるので、現場は混乱している。
Policies are changed almost as soon as they are decided in meetings, so the staff on the ground are confused.
Analyze風の強い日は、庭を掃除したそばから落ち葉が散らかる。
On windy days, fallen leaves scatter across the garden again as soon as it has been swept.
Analyze毎回、彼は注意事項を聞いたそばから、禁止された操作を始める。
Every time, no sooner has he heard the warnings than he starts doing exactly what is prohibited.
Analyze