HSK 7–9 grammar · pattern
X了又Y，Y了又X
X了又Y，Y了又X — over and over
Pattern
+ + + + + +
( ) can be left out · other words may come before, between and after
How it works
Two verbs chase each other through the frame to picture an action cycling without end: 写了又改，改了又写. The repetition itself carries the meaning — the speaker is stressing weary persistence or futility.
Examples
他写了又改，改了又写。
Tā xiě le yòu gǎi, gǎi le yòu xiě.
He wrote and revised, revised and wrote again.
雪化了又下，下了又化。
Xuě huà le yòu xià, xià le yòu huà.
The snow melted and fell, fell and melted again.
Related
See it in a story
In the app, X了又Y，Y了又X is underlined wherever it appears in the stories you read, and practised with sentences from them. Free.