the simple method to change this sentence into passive
first i want to tell you the structure of passive sentence if you memorize it you will never to ask about passive voice
structure
first of all simple sentence is called active voice sentence
so the structure of simple sentence is subject + helping verb + main Verb + object
in passive voice subject convert into object and object convert into subject means they exchange their positions
object + helping verb + main verb + by + subject
helping verb is according to the tense and main verb in passive voice is always be 3rd form of verb
so these are some point that you have to follow to make the passive voice
so let's make the passive voice of the sentence according to the rules that we dissucced
statue is putted up by the municipality
