1. What sorts of general language resources would you recommend? More specifically, what websites/books/materials would you recommend? I was thinking something akin to digitaldialects.com or freerice.com. If the language of choice makes any difference, I would prefer it to have options for: Spanish, Arabic, German, Latin, and Slavic languages. (languages ranked in order of significance; i.e. I need Spanish resources the most, followed by Arabic, followed by German, etc).
2. In the preterite in Spanish, why do we get:
decir => ellos dijeron, but not *dijieron?
traducir ==> ellos tradujeron,*tradujieron
Thanks for your time!