I ought to base you ought to base he ought to base we ought to base you ought to base they ought to base
V-ing form
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
Perfect
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
V-ing perfect
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
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
V-ing form
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
Perfect
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
V-ing perfect
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
ought to I base? ought to you base? ought to he base? ought to we base? ought to you base? ought to they base?
V-ing form
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?
Perfect
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?
V-ing perfect
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
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?
V-ing form
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?
Perfect
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?
V-ing perfect
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?