could pi
Verbe régulier : pi - pied- pied

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could pi
you could pi
she could pi
we could pi
you could pi
they could pi 	I could be piing
you could be piing
she could be piing
we could be piing
you could be piing
they could be piing	I could have pied
you could have pied
she could have pied
we could have pied
you could have pied
they could have pied	I could have been piing
you could have been piing
she could have been piing
we could have been piing
you could have been piing
they could have been piing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could not pi
you could not pi
she could not pi
we could not pi
you could not pi
they could not pi 	I could not be piing
you could not be piing
she could not be piing
we could not be piing
you could not be piing
they could not be piing	I could not have pied
you could not have pied
she could not have pied
we could not have pied
you could not have pied
they could not have pied	I could not have been piing
you could not have been piing
she could not have been piing
we could not have been piing
you could not have been piing
they could not have been piing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I pi?
could you pi?
could she pi?
could we pi?
could you pi?
could they pi? 	could I be piing?
could you be piing?
could she be piing?
could we be piing?
could you be piing?
could they be piing? 	could I have pied?
could you have pied?
could she have pied?
could we have pied?
could you have pied?
could they have pied? 	could I have been piing?
could you have been piing?
could she have been piing?
could we have been piing?
could you have been piing?
could they have been piing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I not pi?
could you not pi?
could she not pi?
could we not pi?
could you not pi?
could they not pi? 	could I not be piing?
could you not be piing?
could she not be piing?
could we not be piing?
could you not be piing?
could they not be piing? 	could I not have pied?
could you not have pied?
could she not have pied?
could we not have pied?
could you not have pied?
could they not have pied? 	could I not have been piing?
could you not have been piing?
could she not have been piing?
could we not have been piing?
could you not have been piing?
could they not have been piing?