| Sg | Pl | |
| Nom | maðr | menn (rule) |
| Acc | mann (rule) | menn (rule) |
| Dat | manni (rule) | mönnum (rule) |
| Gen | manns (rule) | manna (rule) |
| Sg | Pl | |
| Nom | maðrinn (rule) | mennnir (rule) |
| Acc | manninn (rule) | mennina (rule) |
| Dat | manninum (rule) | mönnunum (rule) |
| Gen | mannsins (rule) | mannanna (rule) |