An I the only one who doesn't understand why it's "... die praat" instead of "... wie praat"? We are talking about a person after all
Not only in questions, but when using "wie" it means that the speaker doesn't know who it refers to. For example:
- Ik weet niet wie dat is - I do not know who that is.
Note: in that sentence, you cannot replace "who" with "that". However, in the original sentence here, you could also say: "He is the one that talks". This can be a good trick to see whether Dutch would use "die" or "wie".
They are syonyms, but diegene has more emphasis. Also see this explanation in Dutch.
Degene doesn't have a trema (diaeresis) btw. Keep in mind that a trema is used only for pronunciation issues (when an apparent combination of vowels should be pronounced as independent vowels), so you will not find it on single vowels (preceded and followed by consonants). This is unlike German, where adding it changes the vowel.
No, 'dat' refers to het-words or to gender neutral words. And 'die' refers to de-words or male/female words. So here you must use 'die', because 'hij' refers to a male person :) Hope you understand my explanation.
I don't understand why do I see sometimes the word "dat" but other times the word "die" as a conjunction (like in English we use "that" or "who"). What's the difference?
I think it depends on the gender of the substantive it refers to. By the way, they are relative pronouns, not conjunctions.
If you want to say it literally it's: Kijk eens wie er praat? but if more figurely it's: Moet je eens horen wie het zegt!