could unvoice
Verbe régulier : unvoice - unvoiced- unvoiced

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could unvoice
you could unvoice
she could unvoice
we could unvoice
you could unvoice
they could unvoice 	I could be unvoicing
you could be unvoicing
she could be unvoicing
we could be unvoicing
you could be unvoicing
they could be unvoicing	I could have unvoiced
you could have unvoiced
she could have unvoiced
we could have unvoiced
you could have unvoiced
they could have unvoiced	I could have been unvoicing
you could have been unvoicing
she could have been unvoicing
we could have been unvoicing
you could have been unvoicing
they could have been unvoicing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could not unvoice
you could not unvoice
she could not unvoice
we could not unvoice
you could not unvoice
they could not unvoice 	I could not be unvoicing
you could not be unvoicing
she could not be unvoicing
we could not be unvoicing
you could not be unvoicing
they could not be unvoicing	I could not have unvoiced
you could not have unvoiced
she could not have unvoiced
we could not have unvoiced
you could not have unvoiced
they could not have unvoiced	I could not have been unvoicing
you could not have been unvoicing
she could not have been unvoicing
we could not have been unvoicing
you could not have been unvoicing
they could not have been unvoicing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I unvoice?
could you unvoice?
could she unvoice?
could we unvoice?
could you unvoice?
could they unvoice? 	could I be unvoicing?
could you be unvoicing?
could she be unvoicing?
could we be unvoicing?
could you be unvoicing?
could they be unvoicing? 	could I have unvoiced?
could you have unvoiced?
could she have unvoiced?
could we have unvoiced?
could you have unvoiced?
could they have unvoiced? 	could I have been unvoicing?
could you have been unvoicing?
could she have been unvoicing?
could we have been unvoicing?
could you have been unvoicing?
could they have been unvoicing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I not unvoice?
could you not unvoice?
could she not unvoice?
could we not unvoice?
could you not unvoice?
could they not unvoice? 	could I not be unvoicing?
could you not be unvoicing?
could she not be unvoicing?
could we not be unvoicing?
could you not be unvoicing?
could they not be unvoicing? 	could I not have unvoiced?
could you not have unvoiced?
could she not have unvoiced?
could we not have unvoiced?
could you not have unvoiced?
could they not have unvoiced? 	could I not have been unvoicing?
could you not have been unvoicing?
could she not have been unvoicing?
could we not have been unvoicing?
could you not have been unvoicing?
could they not have been unvoicing?