On grammatical class:

re'u
converts number to an objectively quantified ordinal tense interval modifier; defaults to time.
roi
converts number to an objectively quantified tense interval modifier; defaults to time tense.
ba'oi
Converts PA into tense; in [number (usually nonspecific)] possible futures where [sumti (du'u)] is true
mu'ei
Converts PA into tense; in [number (usually nonspecific)] possible worlds/alternate histories where [sumti (du'u)] is true
ci'iroi
tense interval modifier: occurs infinite times, eternally; objective tense; defaults as time.
ciroi
tense interval modifier: thrice; objectively quantified tense; defaults as time tense.
du'eroi
tense interval modifier: too many times objective tense, defaults as time tense.
fe'enoroi
location tense interval modifier: never in space; objectively quantified tense.
fe'eroroi
location tense interval modifier: always in space; objectively quantified tense.
mo'aroi
tense interval modifier: too few times; objective tense; defaults as time tense.
noroi
tense interval modifier: never; objectively quantified tense; defaults as time tense.
paroi
tense interval modifier: once; objectively quantified tense; defaults as time tense.
piso'iroi
tense interval modifier: often; objectively quantified tense; defaults as time tense.
piso'uroi
tense interval modifier: rarely; objectively quantified tense; defaults as time tense.
reroi
tense interval modifier: twice; objectively quantified tense; defaults as time tense.
roroi
tense interval modifier: always; objectively quantified tense; defaults as time tense.
so'eroi
tense interval modifier: usually; objectively quantified tense; defaults as time tense.
so'iroi
tense interval modifier: many times; objective tense; defaults as time tense.
so'uroi
tense interval modifier: a few times; objective tense; defaults as time tense.
za'ure'u
again; in addition to the first time; for the (> 1)th time

In definition:

cmavnroi
x1 is the selma'o "ROI".

In notes:

rapli
x1 [action] repeats/is repeated for a total of x2 (quantity) occurrences.
dunroi
x1 happens equally as often as x2 in interval x3
mecroi
x1 happens less often than x2 in interval x3
pavroi
x1 happens once in interval x2.
soryroi
x1 happens many times in interval x2.
sotroi
x1 happens seldom/infrequently/is rare in interval x2.
suzroi
x1 happens sometimes in interval x2.
zmaroi
x1 happens more often than x2 in interval x3