can undersign
Verbo regolare: undersign - undersigned- undersigned

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con 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	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	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I cannot undersign
you cannot undersign
she cannot undersign
we cannot undersign
you cannot undersign
they cannot undersign 	I cannot be undersigning
you cannot be undersigning
she cannot be undersigning
we cannot be undersigning
you cannot be undersigning
they cannot be undersigning	I cannot have undersigned
you cannot have undersigned
she cannot have undersigned
we cannot have undersigned
you cannot have undersigned
they cannot have undersigned	I cannot have been undersigning
you cannot have been undersigning
she cannot have been undersigning
we cannot have been undersigning
you cannot have been undersigning
they cannot have been undersigning	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con 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? 	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? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
can I not undersign?
can you not undersign?
can she not undersign?
can we not undersign?
can you not undersign?
can they not undersign? 	can I not be undersigning?
can you not be undersigning?
can she not be undersigning?
can we not be undersigning?
can you not be undersigning?
can they not be undersigning? 	can I not have undersigned?
can you not have undersigned?
can she not have undersigned?
can we not have undersigned?
can you not have undersigned?
can they not have undersigned? 	can I not have been undersigning?
can you not have been undersigning?
can she not have been undersigning?
can we not have been undersigning?
can you not have been undersigning?
can they not have been undersigning?