ought to decongest
Regular verb: decongest - decongested- decongested

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to decongest
you ought to decongest
he ought to decongest
we ought to decongest
you ought to decongest
they ought to decongest 	I ought to be decongesting
you ought to be decongesting
he ought to be decongesting
we ought to be decongesting
you ought to be decongesting
they ought to be decongesting	I ought to have decongested
you ought to have decongested
he ought to have decongested
we ought to have decongested
you ought to have decongested
they ought to have decongested	I ought to have been decongesting
you ought to have been decongesting
he ought to have been decongesting
we ought to have been decongesting
you ought to have been decongesting
they ought to have been decongesting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to decongest
you oughtn't to decongest
he oughtn't to decongest
we oughtn't to decongest
you oughtn't to decongest
they oughtn't to decongest 	I oughtn't to be decongesting
you oughtn't to be decongesting
he oughtn't to be decongesting
we oughtn't to be decongesting
you oughtn't to be decongesting
they oughtn't to be decongesting	I oughtn't to have decongested
you oughtn't to have decongested
he oughtn't to have decongested
we oughtn't to have decongested
you oughtn't to have decongested
they oughtn't to have decongested	I oughtn't to have been decongesting
you oughtn't to have been decongesting
he oughtn't to have been decongesting
we oughtn't to have been decongesting
you oughtn't to have been decongesting
they oughtn't to have been decongesting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I decongest?
ought to you decongest?
ought to he decongest?
ought to we decongest?
ought to you decongest?
ought to they decongest? 	ought to I be decongesting?
ought to you be decongesting?
ought to he be decongesting?
ought to we be decongesting?
ought to you be decongesting?
ought to they be decongesting? 	ought to I have decongested?
ought to you have decongested?
ought to he have decongested?
ought to we have decongested?
ought to you have decongested?
ought to they have decongested? 	ought to I have been decongesting?
ought to you have been decongesting?
ought to he have been decongesting?
ought to we have been decongesting?
ought to you have been decongesting?
ought to they have been decongesting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to decongest?
oughtn't you to decongest?
oughtn't he to decongest?
oughtn't we to decongest?
oughtn't you to decongest?
oughtn't they to decongest? 	oughtn't I to be decongesting?
oughtn't you to be decongesting?
oughtn't he to be decongesting?
oughtn't we to be decongesting?
oughtn't you to be decongesting?
oughtn't they to be decongesting? 	oughtn't I to have decongested?
oughtn't you to have decongested?
oughtn't he to have decongested?
oughtn't we to have decongested?
oughtn't you to have decongested?
oughtn't they to have decongested? 	oughtn't I to have been decongesting?
oughtn't you to have been decongesting?
oughtn't he to have been decongesting?
oughtn't we to have been decongesting?
oughtn't you to have been decongesting?
oughtn't they to have been decongesting?