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