| Nominative | strup |
| Genitive | strupu; strupa |
| Dative | strupu; strupovi |
| Accusative | strup; strupa |
| Vocative | strupe |
| Locative | strupu; strupovi |
| Instrumental | strupem |
| Nominative | strupy; strupi; strupové |
| Genitive | strupů |
| Dative | strupům |
| Accusative | strupy |
| Vocative | strupy; strupi; strupové |
| Locative | strupech |
| Instrumental | strupy |