~ては~てはA then B, over and over
Two actions take turns, again and again: stack the blocks, knock them down, stack them again. It is not the ては of てはいけない and ては困る, "if you do that, there's trouble".
twice
For a good thirty minutes the children played at stacking the blocks, knocking them down and stacking them again.
once
Over New Year, every day was nothing but eating and sleeping.
How to form it
Verb A て-form + は + verb B
積んでは崩す. Said twice, the first half often ends in a ます-stem: 書いては消し、書いては消す. In casual speech ては can shrink to ちゃ and では to じゃ.
- The two verbs
- Often do and undo: 書く and 消す, 積む and 崩す, 降る and やむ. Or one step and the next: 食べる and 寝る.
- Tone
- Often a sigh at getting nowhere, or at a lazy routine. It can also simply paint a scene.
- Where you'll meet it
- Novels, essays and exam reading. Less often in conversation, in full or as ちゃ.
In use
Did yesterday's report take you ages?
Yeah. For two whole hours I kept writing and deleting, deleting and writing.
Since this morning the weather has kept going from sunny to cloudy and back again.
My grandmother keeps looking at old photos and sighing.
It kept happening
English "wrote it and erased it" can be one time. 書いては消した can't: it went around and round. One ては already says so, and saying it twice just shows the wheel turning. Something done one time is plain て.
I kept writing my name and erasing it.
Again and again.
Close neighbours
ては・ではN3
One ては with trouble after it is "if": if that happens, it will be no good.
If we give up here, all our effort so far will go to waste.
たり~たりするN5
With two opposites, back and forth or on and off, in no fixed order. ては keeps the order: each A is followed by its B.
I walked back and forth in front of the station.
Check yourself
1What does this mean?
弟は
Choose an answer to see why.
2In which sentence do two actions keep taking turns?
Choose an answer to see why.
More sentences
I listened on and on to the sound of the waves rolling in and drawing back.
From morning till evening it was print the draft, find a typo, fix it and print again.
For a week she kept going to the shop to check the price, then going home to work out her budget.