ought to prong
Regular verb: prong - pronged- pronged

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

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

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

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