ought to muster
Regular verb: muster - mustered- mustered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to muster
you ought to muster
he ought to muster
we ought to muster
you ought to muster
they ought to muster 	I ought to be mustering
you ought to be mustering
he ought to be mustering
we ought to be mustering
you ought to be mustering
they ought to be mustering	I ought to have mustered
you ought to have mustered
he ought to have mustered
we ought to have mustered
you ought to have mustered
they ought to have mustered	I ought to have been mustering
you ought to have been mustering
he ought to have been mustering
we ought to have been mustering
you ought to have been mustering
they ought to have been mustering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to muster
you oughtn't to muster
he oughtn't to muster
we oughtn't to muster
you oughtn't to muster
they oughtn't to muster 	I oughtn't to be mustering
you oughtn't to be mustering
he oughtn't to be mustering
we oughtn't to be mustering
you oughtn't to be mustering
they oughtn't to be mustering	I oughtn't to have mustered
you oughtn't to have mustered
he oughtn't to have mustered
we oughtn't to have mustered
you oughtn't to have mustered
they oughtn't to have mustered	I oughtn't to have been mustering
you oughtn't to have been mustering
he oughtn't to have been mustering
we oughtn't to have been mustering
you oughtn't to have been mustering
they oughtn't to have been mustering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I muster?
ought to you muster?
ought to he muster?
ought to we muster?
ought to you muster?
ought to they muster? 	ought to I be mustering?
ought to you be mustering?
ought to he be mustering?
ought to we be mustering?
ought to you be mustering?
ought to they be mustering? 	ought to I have mustered?
ought to you have mustered?
ought to he have mustered?
ought to we have mustered?
ought to you have mustered?
ought to they have mustered? 	ought to I have been mustering?
ought to you have been mustering?
ought to he have been mustering?
ought to we have been mustering?
ought to you have been mustering?
ought to they have been mustering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to muster?
oughtn't you to muster?
oughtn't he to muster?
oughtn't we to muster?
oughtn't you to muster?
oughtn't they to muster? 	oughtn't I to be mustering?
oughtn't you to be mustering?
oughtn't he to be mustering?
oughtn't we to be mustering?
oughtn't you to be mustering?
oughtn't they to be mustering? 	oughtn't I to have mustered?
oughtn't you to have mustered?
oughtn't he to have mustered?
oughtn't we to have mustered?
oughtn't you to have mustered?
oughtn't they to have mustered? 	oughtn't I to have been mustering?
oughtn't you to have been mustering?
oughtn't he to have been mustering?
oughtn't we to have been mustering?
oughtn't you to have been mustering?
oughtn't they to have been mustering?