| Presente (Present) "fail" | I | fail | |
| Presente continuo (Present Continuous) "fail" | I | am failing | |
| Pasado simple (Simple past) "fail" | I | failed | |
| Pasado continuo (Past Continuous) "fail" | I | was failing | |
| Presente perfecto (Present perfect) "fail" | I | have failed | |
| Presente perfecto continuo (Present perfect continuous) "fail" | I | have been failing | |
| Pasado perfecto (Past perfect) "fail" | I | had failed | |
| Pasado perfecto continuo (Past perfect continuous) "fail" | I | had been failing | |
| Futuro (Future) "fail" | I | will fail | |
| Futuro continuo (Future continuous) "fail" | I | will be failing | |
| Futuro perfecto (Future perfect) "fail" | I | will have failed | |
| Futuro perfecto continuo (Future perfect continuous) "fail" | I | will have been failing |