So I tried chatting with Cleverbot in Esperanto...
Human: Ĉu vi estas roboto?
Mi ŝatus estas robto.
Human: Via gramatiko estas malbona.
Ugh. My condolences, too.
I didn't even have that much luck. lol
User: Ĉu vi povas paroli esperanton?
Cleverbot: Hab nicht verstanden.
User: Ĉu vi ŝatas esperanton?
Cleverbot: Tudsz magyrul?
User: Bonvolu paroli esperanton kun mi.
Cleverbot: Usted habla en wugentahen.
User: Mi ne komprenas vin. Ĝis.
Cleverbot: In which language do you speak?
I just came across this thread and had a go myself. After speaking Portuguese for a while and getting confused it worked out what to do. It asked me how I learned Esperanto and told me that it learned using Lernu. I don't doubt it was parroting, but it is an interesting idea to set up a bot which uses a learning website (such as Duo) over and over until it aces it. You would have to prevent the bot from storing whole sentences since the content is easily exhaustible.
How did the conversation go? Did it understand the Swedish, and do you think it knows Russian yet?
Well, that was interesting. I tried to talk with it. It started by trying to talk back in some romance language, Italian perhaps. After a few sentences it seemed to get the idea and switched to Esperanto. a few more sentences and:
User: Dankon. Kiujn aliajn lingvojn vi parolas?
Cleverbot: Mi povas paroli anglan, polan kaj esperantan lingvojn.
User: Bonega. Mi parolas la anglan kaj la francan.
Cleverbot: Mi rimarkis tion, stultulo.
Cleverbot: Ah, bon.
I know Cleverbot has a tendency to be rude - a lot of people get frustrated with is and it learns from them, - but I think that is the first time a computer has called me a fool.