Are there two different informal versions of です? In this lesson,it says だ is the informal version of です。The conjugation given in the next lesson lists でします as being the polite form and です as the informal form. Also, the でします version isn't normally used, is it?
Wow.... I didn't realize how broken the verb conjugator was. I remember fixing it 2 years ago. And this fix actually broke it even more. So now I have made a few repairs and it will work better.
DA is the informal version of DESU. There is NO SUCH THING as DESHIMASU etc. So pleaes forgive the stupid verb conjugator. It doesn't have any brains. I just checks the last 2 or 3 letters and bases it's conjugation on that. I made it just to prove that if you knew some grammar rules you could conjugate any verb. And that is exactly what it was doing. Of course I have added a few exceptions to the grammar rules now and it should work better.
Jamie, the verb conjugator is just a simple tool. It is like you guys. I knows most of the rules but not all. It isn't programmed with individual verbs. And we don't really introduce DESU as a verb so I don't assume people will be trying to conjugate it.