Should "Do they write for us?" work too?
I haven't tried it, but "for" is one of the suggested translations for "til".
No, "for" cannot be used here. The suggestions are not specific to each sentence. They are there because there are some sentences where "til" would translate to "for".
"lad os gemme det til en anden dag" is "let us save it for another day".
Your explanation is very clear. Tak!!! :)
I wrote did, rather than do, is there a real difference in this case?
I meant "Do they write to the cheese" XD