ought to mark
Regular verb: mark - marked- marked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
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? 	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 	Perfect 	V-ing perfect 	
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? 	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?