The English grammar is simple. The words don't even have genders, like in German. There you have to find the gender of every noun in order to make a correct sentence. You can't just simply say "the". "The" becomes "der" if it's nominative male, "den" if it's accusative male, "des" if it's genitive and "dem" if it's dative.
And if it's a female noun, it's "die", "die", "der" and "der". And if it's neutral, it's "das", "das", "des" and "dem". And if it's plural, it's "die", "die", "der" and "den".