posted by rfvv .
1. I made the boy carry my bag.
2. The boy is made to carry my bag.
(#2 is the passive voice of #1. By the way why is 'to' added before "carry" in #2?)
One is not exactly the passive of the other. The verb "made" is what you are making passive.
Take a look at these sentences:
John ate a hamburger. <~~active
The hamburger was eaten by John. <~~passive
The boy carried my bag.
My bag was carried by the boy.