ought to bum
Regular verb: bum - bummed- bummed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to bum
you ought to bum
she ought to bum
we ought to bum
you ought to bum
they ought to bum 	I ought to be bumming
you ought to be bumming
she ought to be bumming
we ought to be bumming
you ought to be bumming
they ought to be bumming	I ought to have bummed
you ought to have bummed
she ought to have bummed
we ought to have bummed
you ought to have bummed
they ought to have bummed	I ought to have been bumming
you ought to have been bumming
she ought to have been bumming
we ought to have been bumming
you ought to have been bumming
they ought to have been bumming	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to bum
you oughtn't to bum
she oughtn't to bum
we oughtn't to bum
you oughtn't to bum
they oughtn't to bum 	I oughtn't to be bumming
you oughtn't to be bumming
she oughtn't to be bumming
we oughtn't to be bumming
you oughtn't to be bumming
they oughtn't to be bumming	I oughtn't to have bummed
you oughtn't to have bummed
she oughtn't to have bummed
we oughtn't to have bummed
you oughtn't to have bummed
they oughtn't to have bummed	I oughtn't to have been bumming
you oughtn't to have been bumming
she oughtn't to have been bumming
we oughtn't to have been bumming
you oughtn't to have been bumming
they oughtn't to have been bumming	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I bum?
ought to you bum?
ought to she bum?
ought to we bum?
ought to you bum?
ought to they bum? 	ought to I be bumming?
ought to you be bumming?
ought to she be bumming?
ought to we be bumming?
ought to you be bumming?
ought to they be bumming? 	ought to I have bummed?
ought to you have bummed?
ought to she have bummed?
ought to we have bummed?
ought to you have bummed?
ought to they have bummed? 	ought to I have been bumming?
ought to you have been bumming?
ought to she have been bumming?
ought to we have been bumming?
ought to you have been bumming?
ought to they have been bumming? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to bum?
oughtn't you to bum?
oughtn't she to bum?
oughtn't we to bum?
oughtn't you to bum?
oughtn't they to bum? 	oughtn't I to be bumming?
oughtn't you to be bumming?
oughtn't she to be bumming?
oughtn't we to be bumming?
oughtn't you to be bumming?
oughtn't they to be bumming? 	oughtn't I to have bummed?
oughtn't you to have bummed?
oughtn't she to have bummed?
oughtn't we to have bummed?
oughtn't you to have bummed?
oughtn't they to have bummed? 	oughtn't I to have been bumming?
oughtn't you to have been bumming?
oughtn't she to have been bumming?
oughtn't we to have been bumming?
oughtn't you to have been bumming?
oughtn't they to have been bumming?