Verb conjugation of "rechtfertigen" in German

I wanted to tell you that we have uploaded a successful version (with Peter). In Annex I send the profile. It is very similar to the last version, just a few words less in each lesson.
In school, I had also learned Latin but it's been more than forty years ago. I grew up in Bern and I had lived there all my life, I had no opportunities to travel. It was not that easy during the war.
I want learn Spanish because of my girlfriend from Guatemala. She is from Latin America. And of course I want improve my grammar too. I like to hear it, but speaking is still hard. Hasta Luego.