can prong
Regular verb: prong - pronged- pronged

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can prong
you can prong
she can prong
we can prong
you can prong
they can prong 	I can be pronging
you can be pronging
she can be pronging
we can be pronging
you can be pronging
they can be pronging	I can have pronged
you can have pronged
she can have pronged
we can have pronged
you can have pronged
they can have pronged	I can have been pronging
you can have been pronging
she can have been pronging
we can have been pronging
you can have been pronging
they can have been pronging	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't prong
you can't prong
she can't prong
we can't prong
you can't prong
they can't prong 	I can't be pronging
you can't be pronging
she can't be pronging
we can't be pronging
you can't be pronging
they can't be pronging	I can't have pronged
you can't have pronged
she can't have pronged
we can't have pronged
you can't have pronged
they can't have pronged	I can't have been pronging
you can't have been pronging
she can't have been pronging
we can't have been pronging
you can't have been pronging
they can't have been pronging	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I prong?
can you prong?
can she prong?
can we prong?
can you prong?
can they prong? 	can I be pronging?
can you be pronging?
can she be pronging?
can we be pronging?
can you be pronging?
can they be pronging? 	can I have pronged?
can you have pronged?
can she have pronged?
can we have pronged?
can you have pronged?
can they have pronged? 	can I have been pronging?
can you have been pronging?
can she have been pronging?
can we have been pronging?
can you have been pronging?
can they have been pronging? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I prong?
can't you prong?
can't she prong?
can't we prong?
can't you prong?
can't they prong? 	can't I be pronging?
can't you be pronging?
can't she be pronging?
can't we be pronging?
can't you be pronging?
can't they be pronging? 	can't I have pronged?
can't you have pronged?
can't she have pronged?
can't we have pronged?
can't you have pronged?
can't they have pronged? 	can't I have been pronging?
can't you have been pronging?
can't she have been pronging?
can't we have been pronging?
can't you have been pronging?
can't they have been pronging?