
Verbo irregolare: undertake - undertook - undertaken
| Presente | Presente continuo | Preterito | Preterite continua | 
| I undertake you undertake he undertakes we undertake you undertake they undertake | I am undertaking you are undertaking he is undertaking we are undertaking you are undertaking they are undertaking | I undertook you undertook he undertook we undertook you undertook they undertook | I was undertaking you were undertaking he was undertaking we were undertaking you were undertaking they were undertaking | 
| Presente perfetto | Presente perfetto continuo | Piuccheperfetto | Piuccheperfetto continuo | 
| I have undertaken you have undertaken he has undertaken we have undertaken you have undertaken they have undertaken | I have been undertaking you have been undertaking he has been undertaking we have been undertaking you have been undertaking they have been undertaking | I had undertaken you had undertaken he had undertaken we had undertaken you had undertaken they had undertaken | I had been undertaking you had been undertaking he had been undertaking we had been undertaking you had been undertaking they had been undertaking | 
| Futuro semplice | Futuro continuo | Futuro anteriore | Futuro anteriore contínuo | 
| I will undertake you will undertake he will undertake we will undertake you will undertake they will undertake | I will be undertaking you will be undertaking he will be undertaking we will be undertaking you will be undertaking they will be undertaking | I will have undertaken you will have undertaken he will have undertaken we will have undertaken you will have undertaken they will have undertaken | I will have been undertaking you will have been undertaking he will have been undertaking we will have been undertaking you will have been undertaking they will have been undertaking | 
| Presente | Presente continuo | Passato | Passato continuo | 
| I would undertake you would undertake he would undertake we would undertake you would undertake they would undertake | I would be undertaking you would be undertaking he would be undertaking we would be undertaking you would be undertaking they would be undertaking | I would have undertaken you would have undertaken he would have undertaken we would have undertaken you would have undertaken they would have undertaken | I would have been undertaking you would have been undertaking he would have been undertaking we would have been undertaking you would have been undertaking they would have been undertaking | 
| Infinito | Imperativo | 
| Infinito | Imperativo | ||
| to undertake | undertake Let's undertake undertake | 
| Presente | Passato | ||
| undertaking | undertaken |