
Verbo irregular: undergo - underwent - undergone
Presente | Presente continuo | Pretérito | Pretérito continuo | 
|  do I undergo? do you undergo? does he undergo? do we undergo? do you undergo? do they undergo?  |  am I undergoing? are you undergoing? is he undergoing? are we undergoing? are you undergoing? are they undergoing?  | did I undergo? did you undergo? did he undergo? did we undergo? did you undergo? did they undergo?  |  was I undergoing? were you undergoing? was he undergoing? were we undergoing? were you undergoing? were they undergoing?  | 
Presente perfecto | Presente perfecto continuo | Pluscuamperfecto | Pluscuamperfecto continuo | 
|  have I undergone? have you undergone? has he undergone? have we undergone? have you undergone? have they undergone?  |  have I been undergoing? have you been undergoing? has he been undergoing? have we been undergoing? have you been undergoing? have they been undergoing?  | had I undergone? had you undergone? had he undergone? had we undergone? had you undergone? had they undergone?  | had I been undergoing? had you been undergoing? had he been undergoing? had we been undergoing? had you been undergoing? had they been undergoing?  | 
Futuro simple | Futuro continuo | Futuro perfecto | Futuro perfecto contínuo | 
|  will I undergo? will you undergo? will he undergo? will we undergo? will you undergo? will they undergo?  |  will I be undergoing? will you be undergoing? will he be undergoing? will we be undergoing? will you be undergoing? will they be undergoing?  |  will I have undergone? will you have undergone? will he have undergone? will we have undergone? will you have undergone? will they have undergone?  |  will I have been undergoing? will you have been undergoing? will he have been undergoing? will we have been undergoing? will you have been undergoing? will they have been undergoing?  | 
Presente | Presente continuo | Passado | Passado continuo | 
|  would I undergo? would you undergo? would he undergo? would we undergo? would you undergo? would they undergo?  |  would I be undergoing? would you be undergoing? would he be undergoing? would we be undergoing? would you be undergoing? would they be undergoing?  |  would I have undergone? would you have undergone? would he have undergone? would we have undergone? would you have undergone? would they have undergone?  |  would I have been undergoing? would you have been undergoing? would he have been undergoing? would we have been undergoing? would you have been undergoing? would they have been undergoing?  | 
Infinitivo | Imperativo | 
Infinitivo | Imperativo | ||
| to undergo | - - -  | 
Presente | Passado | ||
| undergoing | undergone |