ought to require
Regular verb: require - required- required

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to require
you ought to require
he ought to require
we ought to require
you ought to require
they ought to require 	I ought to be requiring
you ought to be requiring
he ought to be requiring
we ought to be requiring
you ought to be requiring
they ought to be requiring	I ought to have required
you ought to have required
he ought to have required
we ought to have required
you ought to have required
they ought to have required	I ought to have been requiring
you ought to have been requiring
he ought to have been requiring
we ought to have been requiring
you ought to have been requiring
they ought to have been requiring	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought not to require
you ought not to require
he ought not to require
we ought not to require
you ought not to require
they ought not to require 	I ought not to requiring
you ought not to requiring
he ought not to requiring
we ought not to requiring
you ought not to requiring
they ought not to requiring	I ought not to have required
you ought not to have required
he ought not to have required
we ought not to have required
you ought not to have required
they ought not to have required	I ought not to have been requiring
you ought not to have been requiring
he ought not to have been requiring
we ought not to have been requiring
you ought not to have been requiring
they ought not to have been requiring	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I require?
ought to you require?
ought to he require?
ought to we require?
ought to you require?
ought to they require? 	ought to I be requiring?
ought to you be requiring?
ought to he be requiring?
ought to we be requiring?
ought to you be requiring?
ought to they be requiring? 	ought to I have required?
ought to you have required?
ought to he have required?
ought to we have required?
ought to you have required?
ought to they have required? 	ought to I have been requiring?
ought to you have been requiring?
ought to he have been requiring?
ought to we have been requiring?
ought to you have been requiring?
ought to they have been requiring? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought I not to require?
ought you not to require?
ought he not to require?
ought we not to require?
ought you not to require?
ought they not to require? 	ought I not to be requiring?
ought you not to be requiring?
ought he not to be requiring?
ought we not to be requiring?
ought you not to be requiring?
ought they not to be requiring? 	ought I not to have required?
ought you not to have required?
ought he not to have required?
ought we not to have required?
ought you not to have required?
ought they not to have required? 	ought I not to have been requiring?
ought you not to have been requiring?
ought he not to have been requiring?
ought we not to have been requiring?
ought you not to have been requiring?
ought they not to have been requiring?