ought to base
Regular verb: base - based- based

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to base
you ought to base
he ought to base
we ought to base
you ought to base
they ought to base 	I ought to be basing
you ought to be basing
he ought to be basing
we ought to be basing
you ought to be basing
they ought to be basing	I ought to have based
you ought to have based
he ought to have based
we ought to have based
you ought to have based
they ought to have based	I ought to have been basing
you ought to have been basing
he ought to have been basing
we ought to have been basing
you ought to have been basing
they ought to have been basing	

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

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I base?
ought to you base?
ought to he base?
ought to we base?
ought to you base?
ought to they base? 	ought to I be basing?
ought to you be basing?
ought to he be basing?
ought to we be basing?
ought to you be basing?
ought to they be basing? 	ought to I have based?
ought to you have based?
ought to he have based?
ought to we have based?
ought to you have based?
ought to they have based? 	ought to I have been basing?
ought to you have been basing?
ought to he have been basing?
ought to we have been basing?
ought to you have been basing?
ought to they have been basing? 	

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