Conjugaison du verbe anglais
CAN UNDERTAIN

Verbe régulier : undertain - undertained - undertained

Affirmation

Forme simple	Forme en V-ing
I can undertain you can undertain he can undertain we can undertain you can undertain they can undertain	I can be undertaining you can be undertaining he can be undertaining we can be undertaining you can be undertaining they can be undertaining
Perfect	Perfect en V-ing
I can have undertained you can have undertained he can have undertained we can have undertained you can have undertained they can have undertained	I can have been undertaining you can have been undertaining he can have been undertaining we can have been undertaining you can have been undertaining they can have been undertaining

Négation

Forme simple	Forme en V-ing
I cannot undertain you cannot undertain he cannot undertain we cannot undertain you cannot undertain they cannot undertain	I cannot be undertaining you cannot be undertaining he cannot be undertaining we cannot be undertaining you cannot be undertaining they cannot be undertaining
Perfect	Perfect en V-ing
I cannot have undertained you cannot have undertained he cannot have undertained we cannot have undertained you cannot have undertained they cannot have undertained	I cannot have been undertaining you cannot have been undertaining he cannot have been undertaining we cannot have been undertaining you cannot have been undertaining they cannot have been undertaining

Forme interrogative

Forme simple	Forme en V-ing
can I undertain? can you undertain? can he undertain? can we undertain? can you undertain? can they undertain?	can I be undertaining? can you be undertaining? can he be undertaining? can we be undertaining? can you be undertaining? can they be undertaining?
Perfect	Perfect en V-ing
can I have undertained? can you have undertained? can he have undertained? can we have undertained? can you have undertained? can they have undertained?	can I have been undertaining? can you have been undertaining? can he have been undertaining? can we have been undertaining? can you have been undertaining? can they have been undertaining?

Forme interro-négative

Forme simple	Forme en V-ing
can I not undertain? can you not undertain? can he not undertain? can we not undertain? can you not undertain? can they not undertain?	can I not be undertaining? can you not be undertaining? can he not be undertaining? can we not be undertaining? can you not be undertaining? can they not be undertaining?
Perfect	Perfect en V-ing
can I not have undertained? can you not have undertained? can he not have undertained? can we not have undertained? can you not have undertained? can they not have undertained?	can I not have been undertaining? can you not have been undertaining? can he not have been undertaining? can we not have been undertaining? can you not have been undertaining? can they not have been undertaining?