There are a couple of verbs after which I always hesitate which word to use. For example:
La domo aspektas bela. / La domo aspektas bele.
La viro ŝajnas afabla. / La viro ŝajnas afable.
Now that I look at it, the adjective is certainly correct for the second one. Are there other verbs like these that go with adjectives? Is there a list of them somewhere?