Conjugaison du verbe anglais
CAN UNDERSIGN

Verbe régulier : undersign - undersigned - undersigned

Affirmation

Forme simple	Forme en V-ing
I can undersign you can undersign she can undersign we can undersign you can undersign they can undersign	I can be undersigning you can be undersigning she can be undersigning we can be undersigning you can be undersigning they can be undersigning
Perfect	Perfect en V-ing
I can have undersigned you can have undersigned she can have undersigned we can have undersigned you can have undersigned they can have undersigned	I can have been undersigning you can have been undersigning she can have been undersigning we can have been undersigning you can have been undersigning they can have been undersigning

Négation

Forme simple	Forme en V-ing
I can't undersign you can't undersign she can't undersign we can't undersign you can't undersign they can't undersign	I can't be undersigning you can't be undersigning she can't be undersigning we can't be undersigning you can't be undersigning they can't be undersigning
Perfect	Perfect en V-ing
I can't have undersigned you can't have undersigned she can't have undersigned we can't have undersigned you can't have undersigned they can't have undersigned	I can't have been undersigning you can't have been undersigning she can't have been undersigning we can't have been undersigning you can't have been undersigning they can't have been undersigning

Forme interrogative

Forme simple	Forme en V-ing
can I undersign? can you undersign? can she undersign? can we undersign? can you undersign? can they undersign?	can I be undersigning? can you be undersigning? can she be undersigning? can we be undersigning? can you be undersigning? can they be undersigning?
Perfect	Perfect en V-ing
can I have undersigned? can you have undersigned? can she have undersigned? can we have undersigned? can you have undersigned? can they have undersigned?	can I have been undersigning? can you have been undersigning? can she have been undersigning? can we have been undersigning? can you have been undersigning? can they have been undersigning?

Forme interro-négative

Forme simple	Forme en V-ing
can't I undersign? can't you undersign? can't she undersign? can't we undersign? can't you undersign? can't they undersign?	can't I be undersigning? can't you be undersigning? can't she be undersigning? can't we be undersigning? can't you be undersigning? can't they be undersigning?
Perfect	Perfect en V-ing
can't I have undersigned? can't you have undersigned? can't she have undersigned? can't we have undersigned? can't you have undersigned? can't they have undersigned?	can't I have been undersigning? can't you have been undersigning? can't she have been undersigning? can't we have been undersigning? can't you have been undersigning? can't they have been undersigning?