I ought to brush you ought to brush she 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 she 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 she 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 she 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 ought not to brush you ought not to brush she ought not to brush we ought not to brush you ought not to brush they ought not to brush
V-ing form
I ought not to brushing you ought not to brushing she ought not to brushing we ought not to brushing you ought not to brushing they ought not to brushing
Perfect
I ought not to have brushed you ought not to have brushed she ought not to have brushed we ought not to have brushed you ought not to have brushed they ought not to have brushed
V-ing perfect
I ought not to have been brushing you ought not to have been brushing she ought not to have been brushing we ought not to have been brushing you ought not to have been brushing they ought not to have been brushing
Interrogative form
Simple form
ought to I brush? ought to you brush? ought to she 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 she 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 she 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 she 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
ought I not to brush? ought you not to brush? ought she not to brush? ought we not to brush? ought you not to brush? ought they not to brush?
V-ing form
ought I not to be brushing? ought you not to be brushing? ought she not to be brushing? ought we not to be brushing? ought you not to be brushing? ought they not to be brushing?
Perfect
ought I not to have brushed? ought you not to have brushed? ought she not to have brushed? ought we not to have brushed? ought you not to have brushed? ought they not to have brushed?
V-ing perfect
ought I not to have been brushing? ought you not to have been brushing? ought she not to have been brushing? ought we not to have been brushing? ought you not to have been brushing? ought they not to have been brushing?