I ought to prealter you ought to prealter he ought to prealter we ought to prealter you ought to prealter they ought to prealter
V-ing form
I ought to be prealtering you ought to be prealtering he ought to be prealtering we ought to be prealtering you ought to be prealtering they ought to be prealtering
Perfect
I ought to have prealtered you ought to have prealtered he ought to have prealtered we ought to have prealtered you ought to have prealtered they ought to have prealtered
V-ing perfect
I ought to have been prealtering you ought to have been prealtering he ought to have been prealtering we ought to have been prealtering you ought to have been prealtering they ought to have been prealtering
Negation
Simple form
I ought not to prealter you ought not to prealter he ought not to prealter we ought not to prealter you ought not to prealter they ought not to prealter
V-ing form
I ought not to prealtering you ought not to prealtering he ought not to prealtering we ought not to prealtering you ought not to prealtering they ought not to prealtering
Perfect
I ought not to have prealtered you ought not to have prealtered he ought not to have prealtered we ought not to have prealtered you ought not to have prealtered they ought not to have prealtered
V-ing perfect
I ought not to have been prealtering you ought not to have been prealtering he ought not to have been prealtering we ought not to have been prealtering you ought not to have been prealtering they ought not to have been prealtering
Interrogative form
Simple form
ought to I prealter? ought to you prealter? ought to he prealter? ought to we prealter? ought to you prealter? ought to they prealter?
V-ing form
ought to I be prealtering? ought to you be prealtering? ought to he be prealtering? ought to we be prealtering? ought to you be prealtering? ought to they be prealtering?
Perfect
ought to I have prealtered? ought to you have prealtered? ought to he have prealtered? ought to we have prealtered? ought to you have prealtered? ought to they have prealtered?
V-ing perfect
ought to I have been prealtering? ought to you have been prealtering? ought to he have been prealtering? ought to we have been prealtering? ought to you have been prealtering? ought to they have been prealtering?
Interro-negative form
Simple form
ought I not to prealter? ought you not to prealter? ought he not to prealter? ought we not to prealter? ought you not to prealter? ought they not to prealter?
V-ing form
ought I not to be prealtering? ought you not to be prealtering? ought he not to be prealtering? ought we not to be prealtering? ought you not to be prealtering? ought they not to be prealtering?
Perfect
ought I not to have prealtered? ought you not to have prealtered? ought he not to have prealtered? ought we not to have prealtered? ought you not to have prealtered? ought they not to have prealtered?
V-ing perfect
ought I not to have been prealtering? ought you not to have been prealtering? ought he not to have been prealtering? ought we not to have been prealtering? ought you not to have been prealtering? ought they not to have been prealtering?