I ought to prevalue you ought to prevalue he ought to prevalue we ought to prevalue you ought to prevalue they ought to prevalue
V-ing form
I ought to be prevaluing you ought to be prevaluing he ought to be prevaluing we ought to be prevaluing you ought to be prevaluing they ought to be prevaluing
Perfect
I ought to have prevalued you ought to have prevalued he ought to have prevalued we ought to have prevalued you ought to have prevalued they ought to have prevalued
V-ing perfect
I ought to have been prevaluing you ought to have been prevaluing he ought to have been prevaluing we ought to have been prevaluing you ought to have been prevaluing they ought to have been prevaluing
Negation
Simple form
I ought not to prevalue you ought not to prevalue he ought not to prevalue we ought not to prevalue you ought not to prevalue they ought not to prevalue
V-ing form
I ought not to prevaluing you ought not to prevaluing he ought not to prevaluing we ought not to prevaluing you ought not to prevaluing they ought not to prevaluing
Perfect
I ought not to have prevalued you ought not to have prevalued he ought not to have prevalued we ought not to have prevalued you ought not to have prevalued they ought not to have prevalued
V-ing perfect
I ought not to have been prevaluing you ought not to have been prevaluing he ought not to have been prevaluing we ought not to have been prevaluing you ought not to have been prevaluing they ought not to have been prevaluing
Interrogative form
Simple form
ought to I prevalue? ought to you prevalue? ought to he prevalue? ought to we prevalue? ought to you prevalue? ought to they prevalue?
V-ing form
ought to I be prevaluing? ought to you be prevaluing? ought to he be prevaluing? ought to we be prevaluing? ought to you be prevaluing? ought to they be prevaluing?
Perfect
ought to I have prevalued? ought to you have prevalued? ought to he have prevalued? ought to we have prevalued? ought to you have prevalued? ought to they have prevalued?
V-ing perfect
ought to I have been prevaluing? ought to you have been prevaluing? ought to he have been prevaluing? ought to we have been prevaluing? ought to you have been prevaluing? ought to they have been prevaluing?
Interro-negative form
Simple form
ought I not to prevalue? ought you not to prevalue? ought he not to prevalue? ought we not to prevalue? ought you not to prevalue? ought they not to prevalue?
V-ing form
ought I not to be prevaluing? ought you not to be prevaluing? ought he not to be prevaluing? ought we not to be prevaluing? ought you not to be prevaluing? ought they not to be prevaluing?
Perfect
ought I not to have prevalued? ought you not to have prevalued? ought he not to have prevalued? ought we not to have prevalued? ought you not to have prevalued? ought they not to have prevalued?
V-ing perfect
ought I not to have been prevaluing? ought you not to have been prevaluing? ought he not to have been prevaluing? ought we not to have been prevaluing? ought you not to have been prevaluing? ought they not to have been prevaluing?