Continuing with the first sentence of the LCC2 Relay Text, concerning a talking rock:

il talōnte tiēlen ñi le rā jahāwekien nō il ñi lerāka jawāna sū jakīþa ja pa antēnnā ōl;

tiēlen is a past imperfective marker. Since ñi generally concerns itself with changes of state or location, it assumes that the change is completed. Here the change is not completed.