Someone inserts, tucks something (pa--en) between the narrow space of two things.
seksek
Pasekseken mo papil do bītaw no pantaw.
Tuck the paper between on the side of the doorway.
Someone or an animal (machi-) squeezes, tucks himself/itself between a narrow space.
Nachiseksek ako a nachisirong do abotaw no kayo, ta machimoy.
I squeeze (myself) taking shelter in between (the sides of) the hollow of the tree, because it is raining.
Someone or something. (ma-) is tucked between the narrow space of two things.
Maseksek danaw kobangaya do sintasaya kan parey.
The betel nut purse is tucked between the horizontal beam (of the wall) and the post.