if command in find -exec

I was just trying to list all directories and files under current directory and also write if they are file or directory with the following command:

find -exec echo `echo {} : ;if [ -f {} ]; then echo file; else echo directory;fi` \;

I know it is a silly command, I can use other things like -type f or -type d, but I want to learn why that piece of code did not work as I expected. It just prints directory to all of them. For example while output of find is:

.
./dir
./dir/file

output of my code is :

. : directory
./dir : directory
./dir/file : directory

And output of

echo `echo dir/file : ;if [ -f dir/file ]; then echo file; else echo directory;fi`

is

dir/file : file

I am working on Ubuntu 14.10 and using find (GNU findutils) 4.4.2