Some words that we use incorrectly.

Sometimes , we say [spell] or pronounce incorrectly some words in our daily conversations.

Incorrect            Correct

  kanpanya            kampanya

  lavobo                 lavabo

  cimnastik             jimnastik

   baya                       bayağı

   şohben                 şofben

   sağnak                  sağanak

Source  TDK website.

birşey or bir şey  -  or are they two different things?

they are same thing. officially "bir şey" is the right form. but i support and use "birşey"

No they are not two different things. It should be written as "bir şey"

Actually the rule for it is really easy. The word "şey" is always written apart from the previous word.

bir şey

her şey

I agree with friends. Both ways means same however "şey"  should be written seperately. I sometimes write it as one word

Maybe that is what has been confusing me: sometimes very good language users write it as one word.

Thank you, ikicihan, Umut, tunci.

my friends write it as one word (as well as istiyormusun..etc..) even I found it in grammar books like two sepparate words...