ought to class
Regular verb: class - classed- classed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to class
you ought to class
he ought to class
we ought to class
you ought to class
they ought to class 	I ought to be classing
you ought to be classing
he ought to be classing
we ought to be classing
you ought to be classing
they ought to be classing	I ought to have classed
you ought to have classed
he ought to have classed
we ought to have classed
you ought to have classed
they ought to have classed	I ought to have been classing
you ought to have been classing
he ought to have been classing
we ought to have been classing
you ought to have been classing
they ought to have been classing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to class
you oughtn't to class
he oughtn't to class
we oughtn't to class
you oughtn't to class
they oughtn't to class 	I oughtn't to be classing
you oughtn't to be classing
he oughtn't to be classing
we oughtn't to be classing
you oughtn't to be classing
they oughtn't to be classing	I oughtn't to have classed
you oughtn't to have classed
he oughtn't to have classed
we oughtn't to have classed
you oughtn't to have classed
they oughtn't to have classed	I oughtn't to have been classing
you oughtn't to have been classing
he oughtn't to have been classing
we oughtn't to have been classing
you oughtn't to have been classing
they oughtn't to have been classing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I class?
ought to you class?
ought to he class?
ought to we class?
ought to you class?
ought to they class? 	ought to I be classing?
ought to you be classing?
ought to he be classing?
ought to we be classing?
ought to you be classing?
ought to they be classing? 	ought to I have classed?
ought to you have classed?
ought to he have classed?
ought to we have classed?
ought to you have classed?
ought to they have classed? 	ought to I have been classing?
ought to you have been classing?
ought to he have been classing?
ought to we have been classing?
ought to you have been classing?
ought to they have been classing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to class?
oughtn't you to class?
oughtn't he to class?
oughtn't we to class?
oughtn't you to class?
oughtn't they to class? 	oughtn't I to be classing?
oughtn't you to be classing?
oughtn't he to be classing?
oughtn't we to be classing?
oughtn't you to be classing?
oughtn't they to be classing? 	oughtn't I to have classed?
oughtn't you to have classed?
oughtn't he to have classed?
oughtn't we to have classed?
oughtn't you to have classed?
oughtn't they to have classed? 	oughtn't I to have been classing?
oughtn't you to have been classing?
oughtn't he to have been classing?
oughtn't we to have been classing?
oughtn't you to have been classing?
oughtn't they to have been classing?