Assertion: perfective | /r/MadeOf | the addition of prefixes
Facets:
value: often
type: TEMPORAL
Source sentences:
text: While it is not the intention of this essay to discuss formation, there is an important point here, which relates to what is said elsewhere: that perfectives are often formed by the addition of prefixes, which must be ascertained either through a dictionary, or through experience, but the most common is по-