There have been a few posts (here and here) to explain that the meaning of alles along with was or wer is to emphasize a large group of people or things - all the things, who all etc.
What are the rules determining the position of alles?
I have tried to form some rules around how to use alles based on the following examples:
W- Questions
- Wer kommt denn alles?
- Was macht Sylvie alles?
- Was denn noch alles?
- Was hast du dort alles gekauft?
Possible rules:
alles goes at the end of the question – Example (1), (2) and (3), or before the participle – Example (4)
Sentences
- Der Ausstellungsbereich zeigt, was und wen es alles braucht(e), damit man überhaupt telefonieren kann.
- Hasslnüsse, Walnüsse, Mandeln, Orangen, Honig, Marzipan und was sonst noch alles zum beliebten Lebkuchen gehört.
- Eigentlich gar nicht so langweilig hier, denn wen man hier alles trifft!
Possible rules:
- „was sonst noch alles” is a set phrase for “whatever else” – Example (6)
- alles goes before the conjugated verb – Example (5) and (7)