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