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