A prefix denoting the past tense active (transitive and intransitive), e.g. Nagsilíng siá sa ákon--. He told me--. Nagsulát siá sing binaláybay. He wrote a poem. Sín-o ang nagbúhat sinâ? Who did it? Who has done it (that)? Nagdálum ang búhò. The hole has become deep. Nagláin ang íya ginháwa. She (has) swooned. She did not feel well. Naghalín na siá. He has gone away. (see nanag-).