Question

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?)

Answer 1

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

Try again.

Answer 2

Active:

The boy carried my bag.



Passive:

My bag was carried by the boy.