| Nominative | bobek |
| Genitive | bobku; bobka |
| Dative | bobku; bobkovi |
| Accusative | bobek; bobka |
| Vocative | bobku |
| Locative | bobku; bobkovi |
| Instrumental | bobkem |
| Nominative | bobky; bobci; bobkové |
| Genitive | bobků |
| Dative | bobkům |
| Accusative | bobky |
| Vocative | bobky; bobci; bobkové |
| Locative | bobcích |
| Instrumental | bobky |