The number of cases differs between languages:
- Persian has two; modern English has three but for pronouns only;
- Arabic has three;
- German, Icelandic, Modern Greek, and Irish have four;
- Romanian and Ancient Greek have five;
- Bengali, Latin, Russian, Slovak, Slovenian, and Turkish each have at least six;
- Armenian, Bosnian, Croatian, Czech, Georgian, Latvian, Lithuanian, Polish, Serbian and Ukrainian have seven;
- Sanskrit and Tamil have eight;
- Assamese has 10;
- Estonian has 14;
- Finnish has 15;
- Hungarian has 18 and
- Tsez has 64 cases.
