How “go ceann” works
The noun after go ceann goes into the genitive, the same way it does after a noun: Beidh mé anseo go ceann seachtaine.
“Go ceann” in a sentence
Beidh mé anseo go ceann seachtaine.
I will be here for the next week.
Fan go ceann tamaill.
Wait for a while.
Go ceann míosa.
For a month to come.
Other compound prepositions
Go ceann in Irish: the questions people ask
What does go ceann mean in Irish?
go ceann means for the next, until the end of: Beidh mé anseo go ceann seachtaine. I will be here for the next week.
Does go ceann take the genitive?
Yes. The noun after go ceann is in the genitive case: Beidh mé anseo go ceann seachtaine.