Question

You must not hammer the nails into the wall without permission
Change into passive voice

Answer 1

ʜᴇʏᴀ ᴍᴀᴛᴇ ʜᴇʀᴇ ɪs ʏᴏᴜʀ ᴀɴsᴡᴇʀ 
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●The nails must not be hammered by you into the wall without permission.

Answer 2

Answer:

the nails must not be hammered into the walls without permission by you.