Hi everyone,
I saw a post on here a couple weeks back asking about learning the languages, and the number of '???' ones not seeming to go down. I figured I would spend a bit of time no-lifing this, and learn the complete languages of the 3 alien races. After a couple of nights of just running around paradise planets, taking my exocraft between Trading Posts, Archive buildings and alien monoliths, I now have them fully learned, and have discovered the following things-

1. While you are learning the languages, you will always have 32 'blanks' (???). This number only starts to go down once you have less than 32 words to learn. This is a full 'page' of words.
2. The counts in the Guide and on the wiki are wrong. I don't know if more words were added in updates or something, but there are about 200 extra per language.
3. Even after learning all words and getting to the point where Knowledge Stones give you the 'Learned Nothing New' message, conversations with aliens will still sometimes have words that you have not learned, and cannot learn.
4. While using Knowledge Stones, they go in 'cycles' through the alphabet, A-Z. The final word of each language is 'video'.
5. Mystery Words are by far the most numerous. If more words have been added in later updates, it seems like they all fall under this category. When I was learning Vy'keen, I ran out of all other categories of words and still got a couple of hundred Mystery Words from alien NPCs.

Here are the updated Word Counts:

Gek- Guide says 784, but I found a total of 982.

Vy'keen- Guide says 802, but I found a total of 996.

Korvax- Guide says 776, but I found a total of 982.

I have not yet completed the Atlas words.

Anyway, thought this might help anyone trying to complete their alien vocabularies!