I ought to stain you ought to stain she 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 she 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 she 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 she 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 oughtn't to stain you oughtn't to stain she oughtn't to stain we oughtn't to stain you oughtn't to stain they oughtn't to stain
V-ing form
I oughtn't to be staining you oughtn't to be staining she oughtn't to be staining we oughtn't to be staining you oughtn't to be staining they oughtn't to be staining
Perfect
I oughtn't to have stained you oughtn't to have stained she oughtn't to have stained we oughtn't to have stained you oughtn't to have stained they oughtn't to have stained
V-ing perfect
I oughtn't to have been staining you oughtn't to have been staining she oughtn't to have been staining we oughtn't to have been staining you oughtn't to have been staining they oughtn't to have been staining
Interrogative form
Simple form
ought to I stain? ought to you stain? ought to she 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 she 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 she 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 she 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
oughtn't I to stain? oughtn't you to stain? oughtn't she to stain? oughtn't we to stain? oughtn't you to stain? oughtn't they to stain?
V-ing form
oughtn't I to be staining? oughtn't you to be staining? oughtn't she to be staining? oughtn't we to be staining? oughtn't you to be staining? oughtn't they to be staining?
Perfect
oughtn't I to have stained? oughtn't you to have stained? oughtn't she to have stained? oughtn't we to have stained? oughtn't you to have stained? oughtn't they to have stained?
V-ing perfect
oughtn't I to have been staining? oughtn't you to have been staining? oughtn't she to have been staining? oughtn't we to have been staining? oughtn't you to have been staining? oughtn't they to have been staining?