Baldy

Sorry, last question. Why would it be WER and not "WEM hat Herrn Black gesehen" if this is the dative case?

Ah right thank you! Is that because Wen is accusative?

I am really struggling with how to differentiate these 2 sentences. Google tells me they are both the same in German... I know that can't be right. So.. Who did Mr Black see? Could be "Wer hat Herr Black gesehen" But according to google translate, "who has seen Mr Black" would be the same sentence. Obviously I am missing something fundamental here, but what?