Wow - those are indeed stupid mistakes, and I honestly have no reason why I not changed those. Automatic translator would help, indeed, however, what I'm afraid of is that it translates word-for-word. Next to just writing small texts, I also follow the princeton course that is floating around the internet (highly recommend it, by the way, it is quite good), but I already see I have a long way ahead of me. I should be able to know the basics if I study 1 hour per day for the next 2 years, hopefully... Thanks for answering.