English verb conjugation
MUST DAMPEN

Regular verb: dampen - dampened - dampened

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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