ought to dampen
Regular verb: dampen - dampened- dampened

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to dampen
you ought to dampen
he ought to dampen
we ought to dampen
you ought to dampen
they ought to dampen 	I ought to be dampening
you ought to be dampening
he ought to be dampening
we ought to be dampening
you ought to be dampening
they ought to be dampening	I ought to have dampened
you ought to have dampened
he ought to have dampened
we ought to have dampened
you ought to have dampened
they ought to have dampened	I ought to have been dampening
you ought to have been dampening
he ought to have been dampening
we ought to have been dampening
you ought to have been dampening
they ought to have been dampening	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to dampen
you oughtn't to dampen
he oughtn't to dampen
we oughtn't to dampen
you oughtn't to dampen
they oughtn't to dampen 	I oughtn't to be dampening
you oughtn't to be dampening
he oughtn't to be dampening
we oughtn't to be dampening
you oughtn't to be dampening
they oughtn't to be dampening	I oughtn't to have dampened
you oughtn't to have dampened
he oughtn't to have dampened
we oughtn't to have dampened
you oughtn't to have dampened
they oughtn't to have dampened	I oughtn't to have been dampening
you oughtn't to have been dampening
he oughtn't to have been dampening
we oughtn't to have been dampening
you oughtn't to have been dampening
they oughtn't to have been dampening	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I dampen?
ought to you dampen?
ought to he dampen?
ought to we dampen?
ought to you dampen?
ought to they dampen? 	ought to I be dampening?
ought to you be dampening?
ought to he be dampening?
ought to we be dampening?
ought to you be dampening?
ought to they be dampening? 	ought to I have dampened?
ought to you have dampened?
ought to he have dampened?
ought to we have dampened?
ought to you have dampened?
ought to they have dampened? 	ought to I have been dampening?
ought to you have been dampening?
ought to he have been dampening?
ought to we have been dampening?
ought to you have been dampening?
ought to they have been dampening? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to dampen?
oughtn't you to dampen?
oughtn't he to dampen?
oughtn't we to dampen?
oughtn't you to dampen?
oughtn't they to dampen? 	oughtn't I to be dampening?
oughtn't you to be dampening?
oughtn't he to be dampening?
oughtn't we to be dampening?
oughtn't you to be dampening?
oughtn't they to be dampening? 	oughtn't I to have dampened?
oughtn't you to have dampened?
oughtn't he to have dampened?
oughtn't we to have dampened?
oughtn't you to have dampened?
oughtn't they to have dampened? 	oughtn't I to have been dampening?
oughtn't you to have been dampening?
oughtn't he to have been dampening?
oughtn't we to have been dampening?
oughtn't you to have been dampening?
oughtn't they to have been dampening?