[driftwood]

Originally Posted by Casiopea

Let's take a look.

We had our door fixed. Yukiko had her hair cut. Sanjay had the windows cleaned.


Here's the pattern. In the fist one, our door was fixed by someone else; the second, her hair was cut by someone else, and the third, the windows were cleaned by someone else. Your example below doesn't fit into the passive causative pattern:

Ex: I have 10 more years left.
=> ?10 more years are left by someone else

Hope that helps.

I will have my homework done by Monday.

Do you think I mean I will have it done by someone else?
I don't think so.