| decevre |
| avoir deceü |
| Present | decevant |
| Past | deceü |
| 1st sing. | deceif; decei |
| 2nd sing. | deceis |
| 3rd sing. | deceit |
| 1st plur. | decevons |
| 2nd plur. | decevez |
| 3rd plur. | deceivent |
| 1st sing. | decevoie; deceveie |
| 2nd sing. | decevoies; deceveies |
| 3rd sing. | decevoit; deceveit |
| 1st plur. | deceviiens; deceviens |
| 2nd plur. | deceviiez; deceviez |
| 3rd plur. | decevoient; deceveient |
| 1st sing. | deçui |
| 2nd sing. | deceüs |
| 3rd sing. | deçut |
| 1st plur. | deceümes |
| 2nd plur. | deceüstes |
| 3rd plur. | deçurent |
| 1st sing. | decevrai |
| 2nd sing. | decevras |
| 3rd sing. | decevra |
| 1st plur. | decevrons |
| 2nd plur. | decevroiz; decevreiz; decevrez |
| 3rd plur. | decevront |
| 1st sing. | decevroie; decevreie |
| 2nd sing. | decevroies; decevreies |
| 3rd sing. | decevroit; decevreit |
| 1st plur. | decevriiens; decevriens |
| 2nd plur. | decevriiez; decevriez |
| 3rd plur. | decevroient; decevreient |
| 1st sing. | deceive |
| 2nd sing. | deceives |
| 3rd sing. | deceive |
| 1st plur. | decevons |
| 2nd plur. | decevez |
| 3rd plur. | deceivent |
| 1st sing. | deceüsse |
| 2nd sing. | deceüsses |
| 3rd sing. | deceüst |
| 1st plur. | deceüssons; deceüssiens |
| 2nd plur. | deceüssoiz; deceüssez; deceüssiez |
| 3rd plur. | deceüssent |
| 2nd sing. | deceif |
| 1st plur. | decevons |
| 2nd plur. | decevez |