ought to muffle
Regular verb: muffle - muffled- muffled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to muffle
you ought to muffle
he ought to muffle
we ought to muffle
you ought to muffle
they ought to muffle 	I ought to be muffling
you ought to be muffling
he ought to be muffling
we ought to be muffling
you ought to be muffling
they ought to be muffling	I ought to have muffled
you ought to have muffled
he ought to have muffled
we ought to have muffled
you ought to have muffled
they ought to have muffled	I ought to have been muffling
you ought to have been muffling
he ought to have been muffling
we ought to have been muffling
you ought to have been muffling
they ought to have been muffling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to muffle
you oughtn't to muffle
he oughtn't to muffle
we oughtn't to muffle
you oughtn't to muffle
they oughtn't to muffle 	I oughtn't to be muffling
you oughtn't to be muffling
he oughtn't to be muffling
we oughtn't to be muffling
you oughtn't to be muffling
they oughtn't to be muffling	I oughtn't to have muffled
you oughtn't to have muffled
he oughtn't to have muffled
we oughtn't to have muffled
you oughtn't to have muffled
they oughtn't to have muffled	I oughtn't to have been muffling
you oughtn't to have been muffling
he oughtn't to have been muffling
we oughtn't to have been muffling
you oughtn't to have been muffling
they oughtn't to have been muffling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I muffle?
ought to you muffle?
ought to he muffle?
ought to we muffle?
ought to you muffle?
ought to they muffle? 	ought to I be muffling?
ought to you be muffling?
ought to he be muffling?
ought to we be muffling?
ought to you be muffling?
ought to they be muffling? 	ought to I have muffled?
ought to you have muffled?
ought to he have muffled?
ought to we have muffled?
ought to you have muffled?
ought to they have muffled? 	ought to I have been muffling?
ought to you have been muffling?
ought to he have been muffling?
ought to we have been muffling?
ought to you have been muffling?
ought to they have been muffling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to muffle?
oughtn't you to muffle?
oughtn't he to muffle?
oughtn't we to muffle?
oughtn't you to muffle?
oughtn't they to muffle? 	oughtn't I to be muffling?
oughtn't you to be muffling?
oughtn't he to be muffling?
oughtn't we to be muffling?
oughtn't you to be muffling?
oughtn't they to be muffling? 	oughtn't I to have muffled?
oughtn't you to have muffled?
oughtn't he to have muffled?
oughtn't we to have muffled?
oughtn't you to have muffled?
oughtn't they to have muffled? 	oughtn't I to have been muffling?
oughtn't you to have been muffling?
oughtn't he to have been muffling?
oughtn't we to have been muffling?
oughtn't you to have been muffling?
oughtn't they to have been muffling?