could interchange
Verbe régulier : interchange - interchanged- interchanged
Traduction française : échanger - intervertir 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could interchange
you could interchange
she could interchange
we could interchange
you could interchange
they could interchange 	I could be interchanging
you could be interchanging
she could be interchanging
we could be interchanging
you could be interchanging
they could be interchanging	I could have interchanged
you could have interchanged
she could have interchanged
we could have interchanged
you could have interchanged
they could have interchanged	I could have been interchanging
you could have been interchanging
she could have been interchanging
we could have been interchanging
you could have been interchanging
they could have been interchanging	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could not interchange
you could not interchange
she could not interchange
we could not interchange
you could not interchange
they could not interchange 	I could not be interchanging
you could not be interchanging
she could not be interchanging
we could not be interchanging
you could not be interchanging
they could not be interchanging	I could not have interchanged
you could not have interchanged
she could not have interchanged
we could not have interchanged
you could not have interchanged
they could not have interchanged	I could not have been interchanging
you could not have been interchanging
she could not have been interchanging
we could not have been interchanging
you could not have been interchanging
they could not have been interchanging	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I interchange?
could you interchange?
could she interchange?
could we interchange?
could you interchange?
could they interchange? 	could I be interchanging?
could you be interchanging?
could she be interchanging?
could we be interchanging?
could you be interchanging?
could they be interchanging? 	could I have interchanged?
could you have interchanged?
could she have interchanged?
could we have interchanged?
could you have interchanged?
could they have interchanged? 	could I have been interchanging?
could you have been interchanging?
could she have been interchanging?
could we have been interchanging?
could you have been interchanging?
could they have been interchanging? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I not interchange?
could you not interchange?
could she not interchange?
could we not interchange?
could you not interchange?
could they not interchange? 	could I not be interchanging?
could you not be interchanging?
could she not be interchanging?
could we not be interchanging?
could you not be interchanging?
could they not be interchanging? 	could I not have interchanged?
could you not have interchanged?
could she not have interchanged?
could we not have interchanged?
could you not have interchanged?
could they not have interchanged? 	could I not have been interchanging?
could you not have been interchanging?
could she not have been interchanging?
could we not have been interchanging?
could you not have been interchanging?
could they not have been interchanging?