"I wear shoes."
Translation:Ja noszę buty.
You can say "Noszę buty". "Noszę butem" is as if you were carrying something using a shoe... quite a strange thought ;)
but is a shoe (singular nominative=accusative) buty is shoes (plural nominative=accusative)
simply speaking, but is one shoe, buty is more than one shoe. the "(singular nominative=accusative)" and other stuff confuse me, so i decided to simplify it just in case it confuses someone else