Color Key
| Regular | Irregular |
| Ortho. Change | Not Used |
| yo | certificara |
| tú | certificaras |
| él / Ud. | certificara |
| nosotros | certificáramos |
| vosotros | certificarais |
| ellos / Uds. | certificaran |
| yo | certificase |
| tú | certificases |
| él / Ud. | certificase |
| nosotros | certificásemos |
| vosotros | certificaseis |
| ellos / Uds. | certificasen |
| Regular | Irregular |
| Ortho. Change | Not Used |
