roi ROI -rom roi- cmavo

converts number to an objectively quantified tense interval modifier; defaults to time tense.

In definition:

cmavnroi
x1 is the selma'o "ROI".

In notes:

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.
rapli
x1 [action] repeats/is repeated for a total of x2 (quantity) occurrences.
si'ei
numeric suffix: indicates that the number refers to portionality instead of cardinality
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.
ta'erda
x1 is a part of Lojban text representing rule 'interval-property' according to the first edition of the book 'The Complete Lojban Language'.
xau'e
symbol string to number/variable
zmaroi
x1 happens more often than x2 in interval x3