"Thirteen comes after twelve."
Translation:Dertien komt na twaalf.
is "is dertien komt achter twaalf" also a possibility? are "na" and "achter" word synonyms? thank you in advance :)
I don't think achter is correct here. Its basic meaning is behind, not after, and numbers in counting are not usually thought of as following each other in a physical sense, each with its front to the next one and its behind to the previous one.
Achter in that sense is not used in the Netherlands, it is used in Flemish (and certain Dutch dialects), but I'm not sure if it's considered standard Flemish. It's used in the West-Flemish dialect for sure, maybe in other dialects as well.