I am not sure whether I should post this in English or French. I'm still learning French, therefore I will post it in Eng.

Look at the example:

Il n'a rien mangé - He has eaten nothing.

From Collins Easy Learning French Grammar

The indefinite pronoun rien was placed according to the french usual pronoun placement — before the verb. I have seen other examples with tout being placed likewise; I can't recall one now though. Does this placement apply to any other indefinite pronoun such as personne, quelque chose, quelqu'une...?