káun/káʔun/eat+-a=kan-a/kánʔa/eat it (with the final syllable of the root dropped).
luhud/luhúd/kneel+-an=ludhan/lúdhan/kneel on (with the vowel of the final syllable of the root dropped).

The sequences /ʔVh/ usually becomes /hVʔ/ (where V is a vowel):

túu/túʔu/believe+-an=tuhúan/tuhū́ʔan/believable (where /h/ is intercalated by the rule of 5.13).

Sequences of a liquid or /s/ plus a consonant tend to be metathesized when a suffix is added if the vowel of the final syllable of the root is dropped.

ngálan/ŋálan/name+-an=nganlan/ŋánlan/be named
sulud/sulúd/enter+-un=sudlun/súdlun/enter it
inum/ʔinúm/drink+-a=imna/ʔímna/drink it
putus/putús/wrap+-un=pustun/pústun/wrap it
lusut/lusút/go through+-an=lutsan/lū́can/go through it

These alternations also manifest themselves in competing root forms: alhu /ʔálhu/ and hal-u /halʔu/ ‘pestle’; kalamunggay and kamalunggay ‘k.o. tree’.

5.15 Change of /r/ or /l/ to /d, g, h/

Intervocalically, /d/ usually becomes /r/ or, less frequently, /l/:

búkidmountain+ka-an=kabukíran or, alternatively, kabukílan mountains

Vice versa, in roots with intervocalic /l/ or /r/, the /l/ or /r/ may change to /d/ when final or abutting on a consonant.