ought to underrun
Irregular verb: underrun - underran- underrun

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to underrun
you ought to underrun
he ought to underrun
we ought to underrun
you ought to underrun
they ought to underrun 	I ought to be underruning
you ought to be underruning
he ought to be underruning
we ought to be underruning
you ought to be underruning
they ought to be underruning	I ought to have underrun
you ought to have underrun
he ought to have underrun
we ought to have underrun
you ought to have underrun
they ought to have underrun	I ought to have been underruning
you ought to have been underruning
he ought to have been underruning
we ought to have been underruning
you ought to have been underruning
they ought to have been underruning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to underrun
you oughtn't to underrun
he oughtn't to underrun
we oughtn't to underrun
you oughtn't to underrun
they oughtn't to underrun 	I oughtn't to be underruning
you oughtn't to be underruning
he oughtn't to be underruning
we oughtn't to be underruning
you oughtn't to be underruning
they oughtn't to be underruning	I oughtn't to have underrun
you oughtn't to have underrun
he oughtn't to have underrun
we oughtn't to have underrun
you oughtn't to have underrun
they oughtn't to have underrun	I oughtn't to have been underruning
you oughtn't to have been underruning
he oughtn't to have been underruning
we oughtn't to have been underruning
you oughtn't to have been underruning
they oughtn't to have been underruning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I underrun?
ought to you underrun?
ought to he underrun?
ought to we underrun?
ought to you underrun?
ought to they underrun? 	ought to I be underruning?
ought to you be underruning?
ought to he be underruning?
ought to we be underruning?
ought to you be underruning?
ought to they be underruning? 	ought to I have underrun?
ought to you have underrun?
ought to he have underrun?
ought to we have underrun?
ought to you have underrun?
ought to they have underrun? 	ought to I have been underruning?
ought to you have been underruning?
ought to he have been underruning?
ought to we have been underruning?
ought to you have been underruning?
ought to they have been underruning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to underrun?
oughtn't you to underrun?
oughtn't he to underrun?
oughtn't we to underrun?
oughtn't you to underrun?
oughtn't they to underrun? 	oughtn't I to be underruning?
oughtn't you to be underruning?
oughtn't he to be underruning?
oughtn't we to be underruning?
oughtn't you to be underruning?
oughtn't they to be underruning? 	oughtn't I to have underrun?
oughtn't you to have underrun?
oughtn't he to have underrun?
oughtn't we to have underrun?
oughtn't you to have underrun?
oughtn't they to have underrun? 	oughtn't I to have been underruning?
oughtn't you to have been underruning?
oughtn't he to have been underruning?
oughtn't we to have been underruning?
oughtn't you to have been underruning?
oughtn't they to have been underruning?