| Case | Singular | Plural |
|---|---|---|
| nom | extrovert | extroverti |
| gen | extroverta | extrovertů |
| dat | extrovertovi, extrovertu |
extrovertům |
| acc | extroverta | extroverty |
| voc | extroverte | extroverti |
| loc | extrovertovi, extrovertu |
extrovertech |
| instr | extrovertem | extroverty |