Hello,Originally Posted by Lovejoy
First, it's not passive in structure. Second, the past participle "made" has two functions: it functions as a verb (make, made) and as an adjective: (made, made of, made from)
Verb (make, made)
Active: John makes lunch everyday.
Passive: Lunch is made by John everyday.
Active: This shirt is made of cotton.
Passive: (No passive form. The verb 'is' is stative')
Active: John makes (Verb) shirts made of (adjective) cotton for a living.
Passive: Shirts made of cotton are made by John for a living.
Passive: This fork is used by people for eating.
Active: People use this fork for eating.
Active: This is a used-fork.
Active:This fork is used (i.e. old)
Passive: (no passive form)
Verb (used), Adjective (used)
Active: I used his used car today.
Passive: His used car was used by me today.
Active and Passive: This fork is made of (adjective) silver and made (verb) by people in Mexico.
All the best,