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 she 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 she 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 she 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 she 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 ought not to mark you ought not to mark she ought not to mark we ought not to mark you ought not to mark they ought not to mark	I ought not to marking you ought not to marking she ought not to marking we ought not to marking you ought not to marking they ought not to marking
Perfect	V-ing perfect
I ought not to have marked you ought not to have marked she ought not to have marked we ought not to have marked you ought not to have marked they ought not to have marked	I ought not to have been marking you ought not to have been marking she ought not to have been marking we ought not to have been marking you ought not to have been marking they ought not to have been marking

Interrogative form

Simple form	V-ing form
ought to I mark? ought to you mark? ought to she 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 she 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 she 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 she 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
ought I not to mark? ought you not to mark? ought she not to mark? ought we not to mark? ought you not to mark? ought they not to mark?	ought I not to be marking? ought you not to be marking? ought she not to be marking? ought we not to be marking? ought you not to be marking? ought they not to be marking?
Perfect	V-ing perfect
ought I not to have marked? ought you not to have marked? ought she not to have marked? ought we not to have marked? ought you not to have marked? ought they not to have marked?	ought I not to have been marking? ought you not to have been marking? ought she not to have been marking? ought we not to have been marking? ought you not to have been marking? ought they not to have been marking?