I ought to burrow you ought to burrow he ought to burrow we ought to burrow you ought to burrow they ought to burrow
V-ing form
I ought to be burrowing you ought to be burrowing he ought to be burrowing we ought to be burrowing you ought to be burrowing they ought to be burrowing
Perfect
I ought to have burrowed you ought to have burrowed he ought to have burrowed we ought to have burrowed you ought to have burrowed they ought to have burrowed
V-ing perfect
I ought to have been burrowing you ought to have been burrowing he ought to have been burrowing we ought to have been burrowing you ought to have been burrowing they ought to have been burrowing
Negation
Simple form
I oughtn't to burrow you oughtn't to burrow he oughtn't to burrow we oughtn't to burrow you oughtn't to burrow they oughtn't to burrow
V-ing form
I oughtn't to be burrowing you oughtn't to be burrowing he oughtn't to be burrowing we oughtn't to be burrowing you oughtn't to be burrowing they oughtn't to be burrowing
Perfect
I oughtn't to have burrowed you oughtn't to have burrowed he oughtn't to have burrowed we oughtn't to have burrowed you oughtn't to have burrowed they oughtn't to have burrowed
V-ing perfect
I oughtn't to have been burrowing you oughtn't to have been burrowing he oughtn't to have been burrowing we oughtn't to have been burrowing you oughtn't to have been burrowing they oughtn't to have been burrowing
Interrogative form
Simple form
ought to I burrow? ought to you burrow? ought to he burrow? ought to we burrow? ought to you burrow? ought to they burrow?
V-ing form
ought to I be burrowing? ought to you be burrowing? ought to he be burrowing? ought to we be burrowing? ought to you be burrowing? ought to they be burrowing?
Perfect
ought to I have burrowed? ought to you have burrowed? ought to he have burrowed? ought to we have burrowed? ought to you have burrowed? ought to they have burrowed?
V-ing perfect
ought to I have been burrowing? ought to you have been burrowing? ought to he have been burrowing? ought to we have been burrowing? ought to you have been burrowing? ought to they have been burrowing?
Interro-negative form
Simple form
oughtn't I to burrow? oughtn't you to burrow? oughtn't he to burrow? oughtn't we to burrow? oughtn't you to burrow? oughtn't they to burrow?
V-ing form
oughtn't I to be burrowing? oughtn't you to be burrowing? oughtn't he to be burrowing? oughtn't we to be burrowing? oughtn't you to be burrowing? oughtn't they to be burrowing?
Perfect
oughtn't I to have burrowed? oughtn't you to have burrowed? oughtn't he to have burrowed? oughtn't we to have burrowed? oughtn't you to have burrowed? oughtn't they to have burrowed?
V-ing perfect
oughtn't I to have been burrowing? oughtn't you to have been burrowing? oughtn't he to have been burrowing? oughtn't we to have been burrowing? oughtn't you to have been burrowing? oughtn't they to have been burrowing?