could vat
Verbe régulier : vat - vatted- vatted

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could vat
you could vat
he could vat
we could vat
you could vat
they could vat 	I could be vatting
you could be vatting
he could be vatting
we could be vatting
you could be vatting
they could be vatting	I could have vatted
you could have vatted
he could have vatted
we could have vatted
you could have vatted
they could have vatted	I could have been vatting
you could have been vatting
he could have been vatting
we could have been vatting
you could have been vatting
they could have been vatting	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could not vat
you could not vat
he could not vat
we could not vat
you could not vat
they could not vat 	I could not be vatting
you could not be vatting
he could not be vatting
we could not be vatting
you could not be vatting
they could not be vatting	I could not have vatted
you could not have vatted
he could not have vatted
we could not have vatted
you could not have vatted
they could not have vatted	I could not have been vatting
you could not have been vatting
he could not have been vatting
we could not have been vatting
you could not have been vatting
they could not have been vatting	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I vat?
could you vat?
could he vat?
could we vat?
could you vat?
could they vat? 	could I be vatting?
could you be vatting?
could he be vatting?
could we be vatting?
could you be vatting?
could they be vatting? 	could I have vatted?
could you have vatted?
could he have vatted?
could we have vatted?
could you have vatted?
could they have vatted? 	could I have been vatting?
could you have been vatting?
could he have been vatting?
could we have been vatting?
could you have been vatting?
could they have been vatting? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I not vat?
could you not vat?
could he not vat?
could we not vat?
could you not vat?
could they not vat? 	could I not be vatting?
could you not be vatting?
could he not be vatting?
could we not be vatting?
could you not be vatting?
could they not be vatting? 	could I not have vatted?
could you not have vatted?
could he not have vatted?
could we not have vatted?
could you not have vatted?
could they not have vatted? 	could I not have been vatting?
could you not have been vatting?
could he not have been vatting?
could we not have been vatting?
could you not have been vatting?
could they not have been vatting?