could 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 could undertake
you could undertake
she could undertake
we could undertake
you could undertake
they could undertake 	I could be undertaking
you could be undertaking
she could be undertaking
we could be undertaking
you could be undertaking
they could be undertaking	I could have undertaken
you could have undertaken
she could have undertaken
we could have undertaken
you could have undertaken
they could have undertaken	I could have been undertaking
you could have been undertaking
she could have been undertaking
we could have been undertaking
you could have been undertaking
they could have been undertaking	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't undertake
you couldn't undertake
she couldn't undertake
we couldn't undertake
you couldn't undertake
they couldn't undertake 	I couldn't be undertaking
you couldn't be undertaking
she couldn't be undertaking
we couldn't be undertaking
you couldn't be undertaking
they couldn't be undertaking	I couldn't have undertaken
you couldn't have undertaken
she couldn't have undertaken
we couldn't have undertaken
you couldn't have undertaken
they couldn't have undertaken	I couldn't have been undertaking
you couldn't have been undertaking
she couldn't have been undertaking
we couldn't have been undertaking
you couldn't have been undertaking
they couldn't have been undertaking	

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

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I undertake?
couldn't you undertake?
couldn't she undertake?
couldn't we undertake?
couldn't you undertake?
couldn't they undertake? 	couldn't I be undertaking?
couldn't you be undertaking?
couldn't she be undertaking?
couldn't we be undertaking?
couldn't you be undertaking?
couldn't they be undertaking? 	couldn't I have undertaken?
couldn't you have undertaken?
couldn't she have undertaken?
couldn't we have undertaken?
couldn't you have undertaken?
couldn't they have undertaken? 	couldn't I have been undertaking?
couldn't you have been undertaking?
couldn't she have been undertaking?
couldn't we have been undertaking?
couldn't you have been undertaking?
couldn't they have been undertaking?