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