[color=blue]My quotable quote for the day: Many things can be changed to the passive… And many things are much better off left unchanged.
1a- Dogs like to to chase cats.
2a- I want you to sell your house.
3a- Grass grows over this area. :?:
Please look at my attempts.
1p- Dogs like cats to be chased by them. [color=blue]Very strange-sounding, and “by them” doesn’t work well in this sentence at all
2p- I want your house to be sold (by you) [color=blue]OK, but if you MUST have the “by you” in the sentence, then leave the sentence active.
3p- This area is overgrown by grass. [color=blue]This is not really the same meaning as 3a. “Grow over” and “overgrown” don’t really say exactly the same thing to me
For this sentence I’d say “This area is overgrown with grass.”