I ought to stain you ought to stain he ought to stain we ought to stain you ought to stain they ought to stain
V-ing form
I ought to be staining you ought to be staining he ought to be staining we ought to be staining you ought to be staining they ought to be staining
Perfect
I ought to have stained you ought to have stained he ought to have stained we ought to have stained you ought to have stained they ought to have stained
V-ing perfect
I ought to have been staining you ought to have been staining he ought to have been staining we ought to have been staining you ought to have been staining they ought to have been staining
Negation
Simple form
I ought not to stain you ought not to stain he ought not to stain we ought not to stain you ought not to stain they ought not to stain
V-ing form
I ought not to staining you ought not to staining he ought not to staining we ought not to staining you ought not to staining they ought not to staining
Perfect
I ought not to have stained you ought not to have stained he ought not to have stained we ought not to have stained you ought not to have stained they ought not to have stained
V-ing perfect
I ought not to have been staining you ought not to have been staining he ought not to have been staining we ought not to have been staining you ought not to have been staining they ought not to have been staining
Interrogative form
Simple form
ought to I stain? ought to you stain? ought to he stain? ought to we stain? ought to you stain? ought to they stain?
V-ing form
ought to I be staining? ought to you be staining? ought to he be staining? ought to we be staining? ought to you be staining? ought to they be staining?
Perfect
ought to I have stained? ought to you have stained? ought to he have stained? ought to we have stained? ought to you have stained? ought to they have stained?
V-ing perfect
ought to I have been staining? ought to you have been staining? ought to he have been staining? ought to we have been staining? ought to you have been staining? ought to they have been staining?
Interro-negative form
Simple form
ought I not to stain? ought you not to stain? ought he not to stain? ought we not to stain? ought you not to stain? ought they not to stain?
V-ing form
ought I not to be staining? ought you not to be staining? ought he not to be staining? ought we not to be staining? ought you not to be staining? ought they not to be staining?
Perfect
ought I not to have stained? ought you not to have stained? ought he not to have stained? ought we not to have stained? ought you not to have stained? ought they not to have stained?
V-ing perfect
ought I not to have been staining? ought you not to have been staining? ought he not to have been staining? ought we not to have been staining? ought you not to have been staining? ought they not to have been staining?