"I have the dogs."
Translation:Ik heb de honden.
Plural nouns always take de (or no article). To get it right for singular nouns you'll simply have to learn for every noun if it's a de woord or a het woord. Sorry there is no quick or simple solution. You can find some more info on articles and a few rules that can help with certain words here.
Ja. I also want to knw plz. Im afrikaans so dutch is almost easy for me but this heb hebben heeft thing is confusing a bit