could graft
Verbe régulier : graft - grafted- grafted
Traduction française : greffer - donner ou recevoir des pots-de-vin 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could graft
you could graft
he could graft
we could graft
you could graft
they could graft 	I could be grafting
you could be grafting
he could be grafting
we could be grafting
you could be grafting
they could be grafting	I could have grafted
you could have grafted
he could have grafted
we could have grafted
you could have grafted
they could have grafted	I could have been grafting
you could have been grafting
he could have been grafting
we could have been grafting
you could have been grafting
they could have been grafting	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could not graft
you could not graft
he could not graft
we could not graft
you could not graft
they could not graft 	I could not be grafting
you could not be grafting
he could not be grafting
we could not be grafting
you could not be grafting
they could not be grafting	I could not have grafted
you could not have grafted
he could not have grafted
we could not have grafted
you could not have grafted
they could not have grafted	I could not have been grafting
you could not have been grafting
he could not have been grafting
we could not have been grafting
you could not have been grafting
they could not have been grafting	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I graft?
could you graft?
could he graft?
could we graft?
could you graft?
could they graft? 	could I be grafting?
could you be grafting?
could he be grafting?
could we be grafting?
could you be grafting?
could they be grafting? 	could I have grafted?
could you have grafted?
could he have grafted?
could we have grafted?
could you have grafted?
could they have grafted? 	could I have been grafting?
could you have been grafting?
could he have been grafting?
could we have been grafting?
could you have been grafting?
could they have been grafting? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I not graft?
could you not graft?
could he not graft?
could we not graft?
could you not graft?
could they not graft? 	could I not be grafting?
could you not be grafting?
could he not be grafting?
could we not be grafting?
could you not be grafting?
could they not be grafting? 	could I not have grafted?
could you not have grafted?
could he not have grafted?
could we not have grafted?
could you not have grafted?
could they not have grafted? 	could I not have been grafting?
could you not have been grafting?
could he not have been grafting?
could we not have been grafting?
could you not have been grafting?
could they not have been grafting?