5.12 Dropping of vowels

When a suffix is added to a root with a stressed final syllable, the tendency is to drop the vowel of the final syllable of the root:

dakup/dakúp/arrest+-an=dakpan/dákpan/be arrested
pisik/pisík/splash+-an=piskan/pískan/be splashed
lakat/lakát/go+-unun=laktunun/laktunún/errand

This occasionally also happens to roots with stressed penults:

kalímut/kalímut/forget+-i=kalimti/kalímti/forget it
5.13 Adding of /h/ or /ʔ/ to roots ending in a vowel when a suffix is added

Some roots which end in a vowel add /ʔ/ before a suffix, some roots add /h/, other roots add either /ʔ/ or /h/ (depending on which suffix):

bása/bása/read+-un=basáhun/basáhun/be read
adtu/ʔádtu/go+-un=adtúun/ʔadtū́ʔun/gone to get
kabaláka/kabaláka/worry+-an=kabalak-an/kabalákʔan/s.t. to worry about (with the vowel of the final syllable of the root dropped—5.12).
sulti/súlti/talk+-un=sultíhun/sultī́hun/talk it out
sulti/súlti/talk+-ánay=sultiánay/sultiʔā́nay/conversation
5.14 Metathesis

In affixed forms, the sequences /ʔC/ and /hC/ (where C is any consonant) almost always become /Cʔ/ and /Ch/:[16]