I had a similar problem with language in 2300. There wasn't any real structure for languages except the number you received automatically, and that each level in Linguistics was another language. (The levels go to 10 by default for skills in 2300.) As you can see, there's no relative skill, merely that you
know the language. RoleMaster (or RollMaster, if you prefer) has a decent level description for languages that runs 1-11, so I thought I might adapt that (it also separates written and spoken language, but I combined them for simplicity, though the descriptions are verbal only). Here's what I came up with as a descriptive:
0 - Allows recognition of the language when spoken.
1 - Allows user to communicate and understand very basic concepts in the form of single words or very short phrases (e.g., eat, danger, room, money, cost, enemy, bathroom, pain, etc.).
2 - User can distinguish between major dialects. Allows user to communicate moderately basic concepts in the form of phrases. User can get the tone/context of the language when spoken at a normal rate, but no more. He can, however, understand basic phrases spoken at a slow pace.
3 - User may converse on very simple subjects, using whole sentences instead of broken phrases. User can understand everyday conversation when spoken slowly.
4 - Allows user to converse freely in everyday conversation of an average nature (e.g., market talk, peasant discussions, conversation with guards, etc.). Rapid and/or sophisticated speech is still troublesome.
5 - The normal speaking level of the native population, the common man. Subtle or particularly sophisticated concepts still prove troublesome. User cannot understand dialects or archaic speech out of the norm. User can converse freely on the same level.
6 - True fluency. Allows understanding of, and conversation with, the most learned of native speakers. Sophisticated folk may still brand you as an “outlander,” however, any archaic or unusual concepts will still prove troublesome.
7 - Fluency plus the ability to recognize the regional and cultural origin of all speech (although such speech will still prove troublesome to speak or understand).
8 - Absolute fluency in chosen dialect plus simple understanding and speaking ability in closely related dialects.
9 - Absolute fluency of the chosen language and all closely related dialects. Extremely archaic and complex concepts may prove troublesome.
10 - As for Rank 9, unless the GM’s world system calls for extremely complex languages and/or dialects.
The "fluency" vice "native population" is the difference between "uneducated" and "educated" in most of the western world, today. (And, I wouldn't say those are perfect descriptions.)
Since levels for each language don't exist in 2300, I parsed them out this way:
Background languages were calculated as 2 + Eloquence bonus (0-5) + Education bonus (0-5) + Linguistics skill - the order in which the language was learned (1st=1, 2d=2, 3rd=3, etc.).
Career languages were the same, except they started as 1+....
This gave you a conceivable range of 1 to 21 for your primary language, with anything over 9 being esoteric (scientific terms, old dialects, etc - much like actually being able to read Beowulf in the original without notes). Someone with a Linguistics of 10 and very erudite could learn their final languages up to a level of 10 or so. To have a 1 in your native language, the character had to be a total dud - I was thinking of Hodor from Game Of Thrones when I set that as the bottom level. It also makes each language progressively a little harder to learn well (as in RL). It set an average person's native language at 5-6, with an erudite character from 7-8. My character - being average eloquence, but decently educated, and with a Linguistics of 0, and 2 each languages from background and career - had 4 languages, with ranks from 7 down to 2. (He's limited to asking things like "Where's the dang bathroom?" and cursing in that last language.
)
Icosahedron, I think your layout works pretty well, though I don't know about negative skill levels. I think a Spaniard with English-3 could pass as a native, too, though. However, he might be required to make a task roll in some situations (surprise, stress, just the right question, etc.) to not slip up.
I agree with you about being a stranger in a strange land, Darkwing. I never had a problem with a German speaking English with me - as long as I tried in German first. Parisians... not so much, as it pertained to French. Italians? I've had some funny incidents trying to speak Italian. As far as phrasebooks, be careful that the book itself isn't offensive. (I was in Bosnia, and a Serb got upset because my Berlitz book said "Serbo-Croatian". There are very few differences - almost entirely in some word choices - but he insisted they were two totally separate languages.)
BytePro - +1 for dragging Corbin Dallas into the conversation.
And, yes, it's most fun if you can really play it out, but some people feel really uncomfortable trying that.