Translation of unerklärlich

This is almost six hours, a long time for someone who has children and a day job. I recommend that we write eachother shorter emails and in both languages. Spanish and English next to eachother.
We are back in South Carolina for Christmas. We are staying at the Hilton near the Corner. As you said, great location! Our trip included LA, California and the coast of Oregon (which was spectacular).
We added all tenses to the online conjugator. Please have a look. Please tell me if you like it, whether it is useful to you and whether you would integrate it into your homepage for language studies.