| Case | Singular | Plural |
|---|---|---|
| nom | teorie relativity | teorie relativity |
| gen | teorie relativity | teorií relativity |
| dat | teorii relativity | teoriím relativity |
| acc | teorii relativity | teorie relativity |
| voc | teorie relativity | teorie relativity |
| loc | teorii relativity | teoriích relativity |
| instr | teorií relativity | teoriemi relativity |