could prong
Verbe régulier : prong - pronged- pronged

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could prong
you could prong
she could prong
we could prong
you could prong
they could prong 	I could be pronging
you could be pronging
she could be pronging
we could be pronging
you could be pronging
they could be pronging	I could have pronged
you could have pronged
she could have pronged
we could have pronged
you could have pronged
they could have pronged	I could have been pronging
you could have been pronging
she could have been pronging
we could have been pronging
you could have been pronging
they could have been pronging	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could not prong
you could not prong
she could not prong
we could not prong
you could not prong
they could not prong 	I could not be pronging
you could not be pronging
she could not be pronging
we could not be pronging
you could not be pronging
they could not be pronging	I could not have pronged
you could not have pronged
she could not have pronged
we could not have pronged
you could not have pronged
they could not have pronged	I could not have been pronging
you could not have been pronging
she could not have been pronging
we could not have been pronging
you could not have been pronging
they could not have been pronging	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I prong?
could you prong?
could she prong?
could we prong?
could you prong?
could they prong? 	could I be pronging?
could you be pronging?
could she be pronging?
could we be pronging?
could you be pronging?
could they be pronging? 	could I have pronged?
could you have pronged?
could she have pronged?
could we have pronged?
could you have pronged?
could they have pronged? 	could I have been pronging?
could you have been pronging?
could she have been pronging?
could we have been pronging?
could you have been pronging?
could they have been pronging? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I not prong?
could you not prong?
could she not prong?
could we not prong?
could you not prong?
could they not prong? 	could I not be pronging?
could you not be pronging?
could she not be pronging?
could we not be pronging?
could you not be pronging?
could they not be pronging? 	could I not have pronged?
could you not have pronged?
could she not have pronged?
could we not have pronged?
could you not have pronged?
could they not have pronged? 	could I not have been pronging?
could you not have been pronging?
could she not have been pronging?
could we not have been pronging?
could you not have been pronging?
could they not have been pronging?