I ought to knot you ought to knot he ought to knot we ought to knot you ought to knot they ought to knot
V-ing form
I ought to be knotting you ought to be knotting he ought to be knotting we ought to be knotting you ought to be knotting they ought to be knotting
Perfect
I ought to have knotted you ought to have knotted he ought to have knotted we ought to have knotted you ought to have knotted they ought to have knotted
V-ing perfect
I ought to have been knotting you ought to have been knotting he ought to have been knotting we ought to have been knotting you ought to have been knotting they ought to have been knotting
Negation
Simple form
I oughtn't to knot you oughtn't to knot he oughtn't to knot we oughtn't to knot you oughtn't to knot they oughtn't to knot
V-ing form
I oughtn't to be knotting you oughtn't to be knotting he oughtn't to be knotting we oughtn't to be knotting you oughtn't to be knotting they oughtn't to be knotting
Perfect
I oughtn't to have knotted you oughtn't to have knotted he oughtn't to have knotted we oughtn't to have knotted you oughtn't to have knotted they oughtn't to have knotted
V-ing perfect
I oughtn't to have been knotting you oughtn't to have been knotting he oughtn't to have been knotting we oughtn't to have been knotting you oughtn't to have been knotting they oughtn't to have been knotting
Interrogative form
Simple form
ought to I knot? ought to you knot? ought to he knot? ought to we knot? ought to you knot? ought to they knot?
V-ing form
ought to I be knotting? ought to you be knotting? ought to he be knotting? ought to we be knotting? ought to you be knotting? ought to they be knotting?
Perfect
ought to I have knotted? ought to you have knotted? ought to he have knotted? ought to we have knotted? ought to you have knotted? ought to they have knotted?
V-ing perfect
ought to I have been knotting? ought to you have been knotting? ought to he have been knotting? ought to we have been knotting? ought to you have been knotting? ought to they have been knotting?
Interro-negative form
Simple form
oughtn't I to knot? oughtn't you to knot? oughtn't he to knot? oughtn't we to knot? oughtn't you to knot? oughtn't they to knot?
V-ing form
oughtn't I to be knotting? oughtn't you to be knotting? oughtn't he to be knotting? oughtn't we to be knotting? oughtn't you to be knotting? oughtn't they to be knotting?
Perfect
oughtn't I to have knotted? oughtn't you to have knotted? oughtn't he to have knotted? oughtn't we to have knotted? oughtn't you to have knotted? oughtn't they to have knotted?
V-ing perfect
oughtn't I to have been knotting? oughtn't you to have been knotting? oughtn't he to have been knotting? oughtn't we to have been knotting? oughtn't you to have been knotting? oughtn't they to have been knotting?