"The bird is eating the mouse."
Translation:De vogel eet de muis.
That's a difficulty many struggle with. There aren't any rules for that. It's just learning and memorizing which one is used where. Mostly it's 'de', but sometimes it's 'het'. You need to memorize the correct article with every word, and that might take a while! Even when you're fluent.
Keep in mind that there is a (small) difference in meaning between eten and opeten. The former simply means to eat, the latter has the same meaning, but with the addition that the whole meal/plate is finished. The same is the case with drinken and opdrinken:
- drink je melk! = drink your milk!
- drink je melk op! = finish your milk!
Could somebody please share what is the difference between het vogel and de vogel?
Thank you in advance :)