can undertake
Verbe irrégulier : undertake - undertook- undertaken
Traduction française : entreprendre - s'engager à 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I can undertake
you can undertake
he can undertake
we can undertake
you can undertake
they can undertake 	I can be undertaking
you can be undertaking
he can be undertaking
we can be undertaking
you can be undertaking
they can be undertaking	I can have undertaken
you can have undertaken
he can have undertaken
we can have undertaken
you can have undertaken
they can have undertaken	I can have been undertaking
you can have been undertaking
he can have been undertaking
we can have been undertaking
you can have been undertaking
they can have been undertaking	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I cannot undertake
you cannot undertake
he cannot undertake
we cannot undertake
you cannot undertake
they cannot undertake 	I cannot be undertaking
you cannot be undertaking
he cannot be undertaking
we cannot be undertaking
you cannot be undertaking
they cannot be undertaking	I cannot have undertaken
you cannot have undertaken
he cannot have undertaken
we cannot have undertaken
you cannot have undertaken
they cannot have undertaken	I cannot have been undertaking
you cannot have been undertaking
he cannot have been undertaking
we cannot have been undertaking
you cannot have been undertaking
they cannot have been undertaking	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
can I undertake?
can you undertake?
can he undertake?
can we undertake?
can you undertake?
can they undertake? 	can I be undertaking?
can you be undertaking?
can he be undertaking?
can we be undertaking?
can you be undertaking?
can they be undertaking? 	can I have undertaken?
can you have undertaken?
can he have undertaken?
can we have undertaken?
can you have undertaken?
can they have undertaken? 	can I have been undertaking?
can you have been undertaking?
can he have been undertaking?
can we have been undertaking?
can you have been undertaking?
can they have been undertaking? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
can I not undertake?
can you not undertake?
can he not undertake?
can we not undertake?
can you not undertake?
can they not undertake? 	can I not be undertaking?
can you not be undertaking?
can he not be undertaking?
can we not be undertaking?
can you not be undertaking?
can they not be undertaking? 	can I not have undertaken?
can you not have undertaken?
can he not have undertaken?
can we not have undertaken?
can you not have undertaken?
can they not have undertaken? 	can I not have been undertaking?
can you not have been undertaking?
can he not have been undertaking?
can we not have been undertaking?
can you not have been undertaking?
can they not have been undertaking?