Now I've been teaching a Lithuanian girl Swedish for 2 hours.

Damn, this language is hard sometimes. I mean, how do you explain: "Om två månader åker jag till Litauen."? The problem is that it's present tense, which is ungrammatical, but Swedish ;)

Then it's a problem to translate questions into English because of the do-construction. It makes it hard to get what the Swedish sentence's words mean.