English verb conjugation
OUGHT TO DEMARK

Regular verb: demark - demarked - demarked

Affirmation

Simple form	V-ing form
I ought to demark you ought to demark he ought to demark we ought to demark you ought to demark they ought to demark	I ought to be demarking you ought to be demarking he ought to be demarking we ought to be demarking you ought to be demarking they ought to be demarking
Perfect	V-ing perfect
I ought to have demarked you ought to have demarked he ought to have demarked we ought to have demarked you ought to have demarked they ought to have demarked	I ought to have been demarking you ought to have been demarking he ought to have been demarking we ought to have been demarking you ought to have been demarking they ought to have been demarking

Negation

Simple form	V-ing form
I oughtn't to demark you oughtn't to demark he oughtn't to demark we oughtn't to demark you oughtn't to demark they oughtn't to demark	I oughtn't to be demarking you oughtn't to be demarking he oughtn't to be demarking we oughtn't to be demarking you oughtn't to be demarking they oughtn't to be demarking
Perfect	V-ing perfect
I oughtn't to have demarked you oughtn't to have demarked he oughtn't to have demarked we oughtn't to have demarked you oughtn't to have demarked they oughtn't to have demarked	I oughtn't to have been demarking you oughtn't to have been demarking he oughtn't to have been demarking we oughtn't to have been demarking you oughtn't to have been demarking they oughtn't to have been demarking

Interrogative form

Simple form	V-ing form
ought to I demark? ought to you demark? ought to he demark? ought to we demark? ought to you demark? ought to they demark?	ought to I be demarking? ought to you be demarking? ought to he be demarking? ought to we be demarking? ought to you be demarking? ought to they be demarking?
Perfect	V-ing perfect
ought to I have demarked? ought to you have demarked? ought to he have demarked? ought to we have demarked? ought to you have demarked? ought to they have demarked?	ought to I have been demarking? ought to you have been demarking? ought to he have been demarking? ought to we have been demarking? ought to you have been demarking? ought to they have been demarking?

Interro-negative form

Simple form	V-ing form
oughtn't I to demark? oughtn't you to demark? oughtn't he to demark? oughtn't we to demark? oughtn't you to demark? oughtn't they to demark?	oughtn't I to be demarking? oughtn't you to be demarking? oughtn't he to be demarking? oughtn't we to be demarking? oughtn't you to be demarking? oughtn't they to be demarking?
Perfect	V-ing perfect
oughtn't I to have demarked? oughtn't you to have demarked? oughtn't he to have demarked? oughtn't we to have demarked? oughtn't you to have demarked? oughtn't they to have demarked?	oughtn't I to have been demarking? oughtn't you to have been demarking? oughtn't he to have been demarking? oughtn't we to have been demarking? oughtn't you to have been demarking? oughtn't they to have been demarking?