An or on is used when the root ends with a consonant or a vowel with a grave or angular accent.
An h preceds them when the roots ends with a vowel otherwise accented or non-accented, or pronounced separately from the preceding consonant or consonants.
The particle an or han is simply added to the root, as,
from
| catúrog | (to sleep), | caturogán | (sleeping place); |
| sing̃ba | (to adore), | sing̃báhan | (church); |
| taclob | (to cover), | taclóban[17] | (covering place);[[16]] |
| tan-ao | (to see at a distance), | tan-aoan[18] | (watching place); |
or is employed either with the interfix r combined with the first vowel of the root or with the first consonant and vowel of the root instead, as
from
| cáon | (to eat) | caraonán |
from
| tíroc | (to assembly) | titiroeán | (meeting place); |