Translation:I don't want her to work on everything.
Because this is a wish (voglio) and besides that it still is followed by "che"
Even though this sentence does translate nicely from Italian into English, it would be great to have a list of English expressions with the preposition "on" that get replaced with something else. Because this is a rare occurrence.
here is a page on 'su' that may be interesting. https://www.thoughtco.com/italian-preposition-su-2011462
here is another more generalized. http://www.learnitaliandaily.com/en/italian-grammar/simple-and-articulated-prepositions-in-italian
it depends which English translation you use..
1) I don't want HER to work on everything
2) I don't want that SHE works on everything
why is the "lei" here not translatable as the formal "you" (2nd person), as well as "her "(3rd)?
For the 'formal you' 'Lei' needs a capital in stead of the minuscule of 'lei'.