"The books or the girls?"
Translation:De boeken of de meisjes?
There are two ways of saying that there are more than one: by adding -en or -s. The rules for when to add -en and when to add -s can be tricky to learn, but here they are:
1) add -s when the word has at least two syllables and ends in -el, -en, -em, -er, -je (like meisjes)
2) add -'s when the word ends with -a, -i, -o, -u, -y (like auto's, menu's, euro's and foto's)
3) add -en to all other nouns
So, thats why its "meisjes" and not "meisjen". I hope this helps
De and het are the Dutch words for "the". About two-thirds of the words use "de" for "the" and the remaining third of the words use "het". It is generally impossible, unfortunately, to tell from looking at a word whether it is a de or het word. You will have to learn them by heart.
I hope this was helpfull. I got the answer out of "Getting Started in Dutch" by Teach Yourself®.