| SG | PL | |
| 1 | debēmus (rule) | |
| 2 | debes (rule) | debētis (rule) |
| 3 | debēt (rule) | debēnt (rule) |
| SG | PL | |
| 1 | ? (rule) | ? (rule) |
| 2 | ? (rule) | ? (rule) |
| 3 | ? (rule) | ? (rule) |
| SG | PL | |
| 2 | debē (rule) | ? (rule) |
| 3 | ? (rule) | ? (rule) |
| SG | PL | |
| 1 | debeām (rule) | debeāmus (rule) |
| 2 | debeās (rule) | debeātis (rule) |
| 3 | debeāt (rule) | debeānt (rule) |