Translation of ungeeignet

Let's not forget how we started. We were writing each other very long messages and today we are both much more fluent in both languages. No book could have brought us that far. Cheers.
The easiest way of writing sentences in Spanish and English is to communicate with other people by email or by chat. I found the different time forms quite in Spanish very confusing at the beginning and it was the most difficult part.
If I'll have the time, I will visit sometime, perhaps you can write me an email in English. I will be correcting it and hope not to discover any errors there. In which city do you live?