| Sg M | Pl M | Sg F | Pl F | Sg N | Pl N | |
| Nom | fasta (rule) | fastan (rule) | faste (rule) | fastan (rule) | faste (rule) | fastan (rule) |
| Acc | fastan (rule) | fastan (rule) | fastan (rule) | fastan (rule) | faste (rule) | fastan (rule) |
| Gen | fastan (rule) | fæstra (rule) | fastan (rule) | fæstra (rule) | fastan (rule) | fæstra (rule) |
| Dat | fastan (rule) | fastum (rule) | fastan (rule) | fastum (rule) | fastan (rule) | fastum (rule) |
| SgM | PlM | SgF | PlF | SgN | PlN | |
| Nom | fæst | fæste (rule) | fastu (rule) | fasta (rule) | fæst (rule) | fæste (rule) |
| Acc | fæstne (rule) | fæste (rule) | fæste (rule) | fasta (rule) | fæst (rule) | fæste (rule) |
| Gen | fæstes (rule) | fæstra (rule) | fæstre (rule) | fæstra (rule) | fæstes (rule) | fæstra (rule) |
| Dat | fastum (rule) | fastum (rule) | fæstre (rule) | fastum (rule) | fastum (rule) | fastum (rule) |
| Instr | fæste (rule) | fastum (rule) | fæstre (rule) | fastum (rule) | fæste (rule) | fastum (rule) |