THE INDEFINITE ADJECTIVE.
208. The indefinite adjective, related to the indefinite pronoun iu, is ia, of any kind, some kind of, a certain kind of, expressing indefinitely the quality of a person or thing:
Estas ia birdo sur tiu arbo, there is a bird of some sort on that tree.
Mi vidis iajn ostojn sur la tero, I saw some kind of bones on the ground.
Estas ia homo en tiu tendo, there is some sort of human being in that tent.
THE INDEFINITE ADVERB OF PLACE.
209. The indefinite adverb of place, related to the indefinite pronoun iu, is ie, anywhere, somewhere, in (at) a certain place. If the verb in the sentence expresses motion toward the place indicated by ie, the ending -n is added (121):
Ie en tiu arbaro estas leono, somewhere in that forest is a lion.
Ie malantaŭ la soldatoj vi trovos amason da kugloj, somewhere behind the soldiers you will find a heap of bullets.
La hirundo flugis ien, the swallow flew somewhere (in some direction).
Mi iros ien, sed mi ankoraŭ ne scias kien, I am going somewhere, but I do not yet know where.
PREDICATE NOMINATIVES.
210. An adjective may stand in predicate relation to the direct object of a transitive verb, as well as to the subject of an intransitive verb (19). Such a predicate adjective, agreeing in number (21) with the object of the verb, but remaining in the nominative case, indicates the result produced by the verb upon the object, or the condition, quality or temporary state in which this object is found:
Li faris la mondon feliĉa, he made the world happy (made-happy the world).
Mi lasis la knabon trankvila, I left the boy calm (undisturbed).
Mi trovis la truon jam farita, I found the hole already made.
Mi lasis ilin bone punitaj, I left them well punished.
Cf. the difference between the examples given and sentences with the same words in an attributive (13) use: