"Their beer tastes good."
Translation:Ilia biero estas bongusta.
The verb esti doesn't take a direct object, since it implies equality.
Mi estas via patro - Via patro estas mi.
Again, thanks for the response! I do wonder if your could clarify what you mean here though, because you're explanation/examples so far don't make any sense to me. What do you mean when you say verbs don't take direct objects? I've read all of the lesson hints so far, and I'm just not recalling anything remotely like that.
Think of this, if a verb (-i, -as, -os, -is, -us, -u) is more or less describing something or saying it equals or is equivalent to the next part of the sentence, it doesn't need a -n :)
Example: He is a man He = a man Li = viro Li estas viro