Questions & Answers about Børnene løber rundt om træet i haven.
Because Danish usually puts the definite article at the end of the noun.
- barn = child
- børn = children
- børnene = the children
Two things are happening here:
- barn has an irregular plural: børn
- the definite plural ending is added: -ene
So børnene is not a separate word for the plus children; it is one word meaning the children.
In ordinary Danish, if there is no adjective, the most natural way to say the children is børnene.
- børnene = the children
You often use de when:
- there is an adjective: de små børn = the small children
- you mean those children: de børn derovre = those children over there
- the context especially calls for that structure
So in this sentence, børnene is the normal choice.