English verb conjugation
OUGHT TO MARK

Regular verb: mark - marked - marked

Affirmation

Simple form	V-ing form
I ought to mark you ought to mark he ought to mark we ought to mark you ought to mark they ought to mark	I ought to be marking you ought to be marking he ought to be marking we ought to be marking you ought to be marking they ought to be marking
Perfect	V-ing perfect
I ought to have marked you ought to have marked he ought to have marked we ought to have marked you ought to have marked they ought to have marked	I ought to have been marking you ought to have been marking he ought to have been marking we ought to have been marking you ought to have been marking they ought to have been marking

Negation

Simple form	V-ing form
I oughtn't to mark you oughtn't to mark he oughtn't to mark we oughtn't to mark you oughtn't to mark they oughtn't to mark	I oughtn't to be marking you oughtn't to be marking he oughtn't to be marking we oughtn't to be marking you oughtn't to be marking they oughtn't to be marking
Perfect	V-ing perfect
I oughtn't to have marked you oughtn't to have marked he oughtn't to have marked we oughtn't to have marked you oughtn't to have marked they oughtn't to have marked	I oughtn't to have been marking you oughtn't to have been marking he oughtn't to have been marking we oughtn't to have been marking you oughtn't to have been marking they oughtn't to have been marking

Interrogative form

Simple form	V-ing form
ought to I mark? ought to you mark? ought to he mark? ought to we mark? ought to you mark? ought to they mark?	ought to I be marking? ought to you be marking? ought to he be marking? ought to we be marking? ought to you be marking? ought to they be marking?
Perfect	V-ing perfect
ought to I have marked? ought to you have marked? ought to he have marked? ought to we have marked? ought to you have marked? ought to they have marked?	ought to I have been marking? ought to you have been marking? ought to he have been marking? ought to we have been marking? ought to you have been marking? ought to they have been marking?

Interro-negative form

Simple form	V-ing form
oughtn't I to mark? oughtn't you to mark? oughtn't he to mark? oughtn't we to mark? oughtn't you to mark? oughtn't they to mark?	oughtn't I to be marking? oughtn't you to be marking? oughtn't he to be marking? oughtn't we to be marking? oughtn't you to be marking? oughtn't they to be marking?
Perfect	V-ing perfect
oughtn't I to have marked? oughtn't you to have marked? oughtn't he to have marked? oughtn't we to have marked? oughtn't you to have marked? oughtn't they to have marked?	oughtn't I to have been marking? oughtn't you to have been marking? oughtn't he to have been marking? oughtn't we to have been marking? oughtn't you to have been marking? oughtn't they to have been marking?