How can I simulate different levels of understanding a language in FG

How can I simulate different levels of understanding a language in FG

Well, that Langauge system you see in FG is made for the D20 systems, where you either know a language or you don't. I think you would do it is how you do it when you sit face to face, and over a table. Describe it.

/H

thx for the quick answer

I think that Call of Cthulhu translates a % of the text... I cant recall....