The verb to be doesn't exist in Turkish language.
To express the meaning (I am, you are...) a suffix is added at the end of the previous noun or adjective.
To learn how to form it, select a subject and click the button "Examples".
With every click a new set of examples is produced.
Remark: Whenever you need to add a vowel to form the suffix, apply the Minor Sound Harmony rule. If you don't remember it go to THEORY